25671462990 has 32 divisors (see below), whose sum is σ = 61797672576. Its totient is φ = 6825038880.

The previous prime is 25671462959. The next prime is 25671462997. The reversal of 25671462990 is 9926417652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25671462997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1282692 + ... + 1302551.

It is an arithmetic number, because the mean of its divisors is an integer number (1931177268).

Almost surely, 2^25671462990 is an apocalyptic number.

25671462990 is an abundant number, since it is smaller than the sum of its proper divisors (36126209586).

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

25671462990 is a wasteful number, since it uses less digits than its factorization.

25671462990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585584.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 25671462990 in words is "twenty-five billion, six hundred seventy-one million, four hundred sixty-two thousand, nine hundred ninety".