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97685172564 = 22371453800357
BaseRepresentation
bin101101011111001111…
…1010111000101010100
3100100010211212220222020
41122332133113011110
53100024401010224
6112513112133140
710025505160320
oct1327637270524
9310124786866
1097685172564
1138478807a81
1216b226971b0
13929a075675
144a29852980
15281add9c79
hex16be7d7154

97685172564 has 48 divisors (see below), whose sum is σ = 260673399168. Its totient is φ = 27890805888.

The previous prime is 97685172553. The next prime is 97685172581. The reversal of 97685172564 is 46527158679.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 97685172498 and 97685172507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278127 + ... + 522230.

It is an arithmetic number, because the mean of its divisors is an integer number (5430695816).

Almost surely, 297685172564 is an apocalyptic number.

It is an amenable number.

97685172564 is an abundant number, since it is smaller than the sum of its proper divisors (162988226604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97685172564 is a wasteful number, since it uses less digits than its factorization.

97685172564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801824 (or 801822 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 60.

The spelling of 97685172564 in words is "ninety-seven billion, six hundred eighty-five million, one hundred seventy-two thousand, five hundred sixty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1453 2906 4359 5812 8718 10171 17436 20342 30513 40684 61026 122052 800357 1600714 2401071 3201428 4802142 5602499 9604284 11204998 16807497 22409996 33614994 67229988 1162918721 2325837442 3488756163 4651674884 6977512326 8140431047 13955024652 16280862094 24421293141 32561724188 48842586282 97685172564