23778437625 has 256 divisors, whose sum is σ = 49816166400. Its totient is φ = 11128320000.

The previous prime is 23778437611. The next prime is 23778437671. The reversal of 23778437625 is 52673487732.

23778437625 is a `hidden beast` number, since 2 + 3 + 7 + 7 + 8 + 4 + 3 + 7 + 625 = 666.

It is not a de Polignac number, because 23778437625 - 2⁴ = 23778437609 is a prime.

It is a super-3 number, since 3×23778437625³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 51579895 + ... + 51580355.

It is an arithmetic number, because the mean of its divisors is an integer number (194594400).

Almost surely, 2^23778437625 is an apocalyptic number.

23778437625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23778437625 is an abundant number, since it is smaller than the sum of its proper divisors (26037728775).

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

23778437625 is a wasteful number, since it uses less digits than its factorization.

23778437625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 546 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 23778437625 in words is "twenty-three billion, seven hundred seventy-eight million, four hundred thirty-seven thousand, six hundred twenty-five".