78160456317531 has 48 divisors (see below), whose sum is σ = 125142400186368. Its totient is φ = 43221217939200.

The previous prime is 78160456317523. The next prime is 78160456317533. The reversal of 78160456317531 is 13571365406187.

It is not a de Polignac number, because 78160456317531 - 2³ = 78160456317523 is a prime.

It is a super-2 number, since 2×78160456317531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78160456317533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187280211 + ... + 187697091.

It is an arithmetic number, because the mean of its divisors is an integer number (2607133337216).

Almost surely, 2^{78160456317531} is an apocalyptic number.

78160456317531 is a deficient number, since it is larger than the sum of its proper divisors (46981943868837).

78160456317531 is a wasteful number, since it uses less digits than its factorization.

78160456317531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458072 (or 458065 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 57.

The spelling of 78160456317531 in words is "seventy-eight trillion, one hundred sixty billion, four hundred fifty-six million, three hundred seventeen thousand, five hundred thirty-one".