25437148872 has 16 divisors (see below), whose sum is σ = 63592872240. Its totient is φ = 8479049616.

The previous prime is 25437148861. The next prime is 25437148889. The reversal of 25437148872 is 27884173452.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529940578 + ... + 529940625.

It is an arithmetic number, because the mean of its divisors is an integer number (3974554515).

Almost surely, 2^25437148872 is an apocalyptic number.

It is an amenable number.

25437148872 is an abundant number, since it is smaller than the sum of its proper divisors (38155723368).

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

25437148872 is a wasteful number, since it uses less digits than its factorization.

25437148872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059881212 (or 1059881208 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 51.

The spelling of 25437148872 in words is "twenty-five billion, four hundred thirty-seven million, one hundred forty-eight thousand, eight hundred seventy-two".