25810734090 has 64 divisors (see below), whose sum is σ = 66142365696. Its totient is φ = 6430492992.

The previous prime is 25810734083. The next prime is 25810734107. The reversal of 25810734090 is 9043701852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405294 + ... + 464633.

It is an arithmetic number, because the mean of its divisors is an integer number (1033474464).

Almost surely, 2^25810734090 is an apocalyptic number.

25810734090 is an abundant number, since it is smaller than the sum of its proper divisors (40331631606).

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

25810734090 is a wasteful number, since it uses less digits than its factorization.

25810734090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870003.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 25810734090 in words is "twenty-five billion, eight hundred ten million, seven hundred thirty-four thousand, ninety".