78460928529 has 16 divisors (see below), whose sum is σ = 110870350848. Its totient is φ = 49185061632.

The previous prime is 78460928519. The next prime is 78460928561. The reversal of 78460928529 is 92582906487.

It is not a de Polignac number, because 78460928529 - 2⁷ = 78460928401 is a prime.

It is a super-2 number, since 2×78460928529² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78460928519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652222 + ... + 763095.

It is an arithmetic number, because the mean of its divisors is an integer number (6929396928).

Almost surely, 2^78460928529 is an apocalyptic number.

It is an amenable number.

78460928529 is a deficient number, since it is larger than the sum of its proper divisors (32409422319).

78460928529 is a wasteful number, since it uses less digits than its factorization.

78460928529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416424.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 78460928529 in words is "seventy-eight billion, four hundred sixty million, nine hundred twenty-eight thousand, five hundred twenty-nine".