25072884642 has 32 divisors (see below), whose sum is σ = 54059144832. Its totient is φ = 7706732544.

The previous prime is 25072884581. The next prime is 25072884667. The reversal of 25072884642 is 24648827052.

It is a junction number, because it is equal to n+sod(n) for n = 25072884591 and 25072884600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90783 + ... + 241634.

It is an arithmetic number, because the mean of its divisors is an integer number (1689348276).

Almost surely, 2^25072884642 is an apocalyptic number.

25072884642 is an abundant number, since it is smaller than the sum of its proper divisors (28986260190).

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

25072884642 is a wasteful number, since it uses less digits than its factorization.

25072884642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333402.

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 25072884642 in words is "twenty-five billion, seventy-two million, eight hundred eighty-four thousand, six hundred forty-two".