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78468382577148 = 22318460935420981
BaseRepresentation
bin10001110101110111011000…
…000100011101000111111100
3101021211111121111110101111020
4101311313120010131013330
540241111221414432043
6434515513255424140
722346103445616364
oct2165673004350774
9337744544411436
1078468382577148
1123003288331023
128973846685050
1334a26c925a6a5
141553c661719a4
15911221973e83
hex475dd811d1fc

78468382577148 has 24 divisors (see below), whose sum is σ = 183093889636560. Its totient is φ = 26155985103360.

The previous prime is 78468382577141. The next prime is 78468382577201. The reversal of 78468382577148 is 84177528386487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468382577141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15495183 + ... + 19925798.

It is an arithmetic number, because the mean of its divisors is an integer number (7628912068190).

Almost surely, 278468382577148 is an apocalyptic number.

It is an amenable number.

78468382577148 is an abundant number, since it is smaller than the sum of its proper divisors (104625507059412).

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

78468382577148 is a wasteful number, since it uses less digits than its factorization.

78468382577148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35605597 (or 35605595 counting only the distinct ones).

The product of its digits is 4046192640, while the sum is 78.

The spelling of 78468382577148 in words is "seventy-eight trillion, four hundred sixty-eight billion, three hundred eighty-two million, five hundred seventy-seven thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 184609 369218 553827 738436 1107654 2215308 35420981 70841962 106262943 141683924 212525886 425051772 6539031881429 13078063762858 19617095644287 26156127525716 39234191288574 78468382577148