25848431616 has 88 divisors (see below), whose sum is σ = 78737773120. Its totient is φ = 7385260032.

The previous prime is 25848431597. The next prime is 25848431617. The reversal of 25848431616 is 61613484852.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25848431617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579511 + ... + 622518.

Almost surely, 2^25848431616 is an apocalyptic number.

It is an amenable number.

25848431616 is an abundant number, since it is smaller than the sum of its proper divisors (52889341504).

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

25848431616 is a wasteful number, since it uses less digits than its factorization.

25848431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202059 (or 1202041 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The spelling of 25848431616 in words is "twenty-five billion, eight hundred forty-eight million, four hundred thirty-one thousand, six hundred sixteen".