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80605760379077 = 216933137156967
BaseRepresentation
bin10010010100111101111101…
…101101101101100011000101
3101120101211120000212122200102
4102110331331231231203011
541031121044124112302
6443233435231453445
722656400612310423
oct2224757555554305
9346354500778612
1080605760379077
11237577903897aa
129059b2a087285
1335c912403b04b
1415c94a7cb0113
1594bb1a35a702
hex494f7db6d8c5

80605760379077 has 4 divisors (see below), whose sum is σ = 80605799705376. Its totient is φ = 80605721052780.

The previous prime is 80605760379061. The next prime is 80605760379083. The reversal of 80605760379077 is 77097306750608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80605760379077 - 24 = 80605760379061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80605760369077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16409153 + ... + 20747814.

It is an arithmetic number, because the mean of its divisors is an integer number (20151449926344).

Almost surely, 280605760379077 is an apocalyptic number.

It is an amenable number.

80605760379077 is a deficient number, since it is larger than the sum of its proper divisors (39326299).

80605760379077 is a wasteful number, since it uses less digits than its factorization.

80605760379077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39326298.

The product of its (nonzero) digits is 93350880, while the sum is 65.

The spelling of 80605760379077 in words is "eighty trillion, six hundred five billion, seven hundred sixty million, three hundred seventy-nine thousand, seventy-seven".

Divisors: 1 2169331 37156967 80605760379077