24640425136 has 40 divisors (see below), whose sum is σ = 50416773120. Its totient is φ = 11642554176.

The previous prime is 24640425091. The next prime is 24640425143. The reversal of 24640425136 is 63152404642.

It is a junction number, because it is equal to n+sod(n) for n = 24640425095 and 24640425104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372816 + ... + 433903.

It is an arithmetic number, because the mean of its divisors is an integer number (1260419328).

Almost surely, 2^24640425136 is an apocalyptic number.

It is an amenable number.

24640425136 is an abundant number, since it is smaller than the sum of its proper divisors (25776347984).

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

24640425136 is a wasteful number, since it uses less digits than its factorization.

24640425136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806833 (or 806827 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 24640425136 its reverse (63152404642), we get a palindrome (87792829778).

The spelling of 24640425136 in words is "twenty-four billion, six hundred forty million, four hundred twenty-five thousand, one hundred thirty-six".