78530807313057 has 32 divisors (see below), whose sum is σ = 115594348068864. Its totient is φ = 47026162368000.

The previous prime is 78530807312939. The next prime is 78530807313067. The reversal of 78530807313057 is 75031370803587.

78530807313057 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 78530807313057 - 2²⁰ = 78530806264481 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 78530807312988 and 78530807313006.

It is not an unprimeable number, because it can be changed into a prime (78530807313067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18265569 + ... + 22151582.

It is an arithmetic number, because the mean of its divisors is an integer number (3612323377152).

Almost surely, 2^{78530807313057} is an apocalyptic number.

It is an amenable number.

78530807313057 is a deficient number, since it is larger than the sum of its proper divisors (37063540755807).

78530807313057 is a wasteful number, since it uses less digits than its factorization.

78530807313057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40417869.

The product of its (nonzero) digits is 14817600, while the sum is 57.

The spelling of 78530807313057 in words is "seventy-eight trillion, five hundred thirty billion, eight hundred seven million, three hundred thirteen thousand, fifty-seven".