78052825081 has 32 divisors (see below), whose sum is σ = 102380463360. Its totient is φ = 57733171200.

The previous prime is 78052825061. The next prime is 78052825087. The reversal of 78052825081 is 18052825087.

It is a cyclic number.

It is not a de Polignac number, because 78052825081 - 2⁹ = 78052824569 is a prime.

It is a super-2 number, since 2×78052825081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78052825087) 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, 217296 + ... + 450913.

It is an arithmetic number, because the mean of its divisors is an integer number (3199389480).

Almost surely, 2^78052825081 is an apocalyptic number.

It is an amenable number.

78052825081 is a deficient number, since it is larger than the sum of its proper divisors (24327638279).

78052825081 is a wasteful number, since it uses less digits than its factorization.

78052825081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668305.

The product of its (nonzero) digits is 358400, while the sum is 46.

The spelling of 78052825081 in words is "seventy-eight billion, fifty-two million, eight hundred twenty-five thousand, eighty-one".