25651691094 has 32 divisors (see below), whose sum is σ = 51801081984. Its totient is φ = 8467986240.

The previous prime is 25651691047. The next prime is 25651691159. The reversal of 25651691094 is 49019615652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230434 + ... + 323114.

It is an arithmetic number, because the mean of its divisors is an integer number (1618783812).

Almost surely, 2^25651691094 is an apocalyptic number.

25651691094 is an abundant number, since it is smaller than the sum of its proper divisors (26149390890).

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

25651691094 is a wasteful number, since it uses less digits than its factorization.

25651691094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93132.

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 25651691094 in words is "twenty-five billion, six hundred fifty-one million, six hundred ninety-one thousand, ninety-four".