25432104644 has 12 divisors (see below), whose sum is σ = 44521990800. Its totient is φ = 12711535848.

The previous prime is 25432104641. The next prime is 25432104667. The reversal of 25432104644 is 44640123452.

It is not an unprimeable number, because it can be changed into a prime (25432104641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116434 + ... + 1138985.

It is an arithmetic number, because the mean of its divisors is an integer number (3710165900).

Almost surely, 2^25432104644 is an apocalyptic number.

It is an amenable number.

25432104644 is a deficient number, since it is larger than the sum of its proper divisors (19089886156).

25432104644 is a wasteful number, since it uses less digits than its factorization.

25432104644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258242 (or 2258240 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 25432104644 in words is "twenty-five billion, four hundred thirty-two million, one hundred four thousand, six hundred forty-four".