678996495825 has 96 divisors (see below), whose sum is σ = 1233861980160. Its totient is φ = 327945024000.

The previous prime is 678996495809. The next prime is 678996495829. The reversal of 678996495825 is 528594699876.

678996495825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678996495825 - 2⁴ = 678996495809 is a prime.

It is a super-2 number, since 2×678996495825² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (678996495829) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59022024 + ... + 59033526.

It is an arithmetic number, because the mean of its divisors is an integer number (12852728960).

Almost surely, 2^678996495825 is an apocalyptic number.

It is an amenable number.

678996495825 is a deficient number, since it is larger than the sum of its proper divisors (554865484335).

678996495825 is a wasteful number, since it uses less digits than its factorization.

678996495825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13359 (or 13354 counting only the distinct ones).

The product of its digits is 2351462400, while the sum is 78.

The spelling of 678996495825 in words is "six hundred seventy-eight billion, nine hundred ninety-six million, four hundred ninety-five thousand, eight hundred twenty-five".