78425927625 has 32 divisors (see below), whose sum is σ = 130874889600. Its totient is φ = 41707243200.

The previous prime is 78425927609. The next prime is 78425927627. The reversal of 78425927625 is 52672952487.

It is not a de Polignac number, because 78425927625 - 2⁴ = 78425927609 is a prime.

It is a super-2 number, since 2×78425927625² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78425927627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168747 + ... + 430496.

It is an arithmetic number, because the mean of its divisors is an integer number (4089840300).

Almost surely, 2^78425927625 is an apocalyptic number.

78425927625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78425927625 is a deficient number, since it is larger than the sum of its proper divisors (52448961975).

78425927625 is a wasteful number, since it uses less digits than its factorization.

78425927625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599610 (or 599600 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The spelling of 78425927625 in words is "seventy-eight billion, four hundred twenty-five million, nine hundred twenty-seven thousand, six hundred twenty-five".