78056752697 has 12 divisors (see below), whose sum is σ = 99055323216. Its totient is φ = 60823443240.

The previous prime is 78056752681. The next prime is 78056752759. The reversal of 78056752697 is 79625765087.

It is not a de Polignac number, because 78056752697 - 2⁴ = 78056752681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78056752667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72408323 + ... + 72409400.

It is an arithmetic number, because the mean of its divisors is an integer number (8254610268).

Almost surely, 2^78056752697 is an apocalyptic number.

78056752697 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

78056752697 is a deficient number, since it is larger than the sum of its proper divisors (20998570519).

78056752697 is a wasteful number, since it uses less digits than its factorization.

78056752697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144817748 (or 144817741 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 62.

The spelling of 78056752697 in words is "seventy-eight billion, fifty-six million, seven hundred fifty-two thousand, six hundred ninety-seven".