25748936836 has 48 divisors (see below), whose sum is σ = 51831442432. Its totient is φ = 10963965600.

The previous prime is 25748936827. The next prime is 25748936849. The reversal of 25748936836 is 63863984752.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3724495 + ... + 3731401.

Almost surely, 2^25748936836 is an apocalyptic number.

It is an amenable number.

25748936836 is an abundant number, since it is smaller than the sum of its proper divisors (26082505596).

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

25748936836 is a wasteful number, since it uses less digits than its factorization.

25748936836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7760 (or 7758 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 61.

The spelling of 25748936836 in words is "twenty-five billion, seven hundred forty-eight million, nine hundred thirty-six thousand, eight hundred thirty-six".