18425778696 has 64 divisors (see below), whose sum is σ = 55119859200. Its totient is φ = 5669469504.

The previous prime is 18425778677. The next prime is 18425778731. The reversal of 18425778696 is 69687752481.

18425778696 is a `hidden beast` number, since 18 + 42 + 577 + 8 + 6 + 9 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3278136 + ... + 3283751.

It is an arithmetic number, because the mean of its divisors is an integer number (861247800).

Almost surely, 2^18425778696 is an apocalyptic number.

It is an amenable number.

18425778696 is an abundant number, since it is smaller than the sum of its proper divisors (36694080504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18425778696 is a wasteful number, since it uses less digits than its factorization.

18425778696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6561915 (or 6561905 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 18425778696 in words is "eighteen billion, four hundred twenty-five million, seven hundred seventy-eight thousand, six hundred ninety-six".