25621877382 has 16 divisors (see below), whose sum is σ = 51647250432. Its totient is φ = 8473376520.

The previous prime is 25621877339. The next prime is 25621877417. The reversal of 25621877382 is 28377812652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16811494 + ... + 16813017.

It is an arithmetic number, because the mean of its divisors is an integer number (3227953152).

Almost surely, 2^25621877382 is an apocalyptic number.

25621877382 is an abundant number, since it is smaller than the sum of its proper divisors (26025373050).

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

25621877382 is a wasteful number, since it uses less digits than its factorization.

25621877382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33624643.

The product of its digits is 2257920, while the sum is 51.

The spelling of 25621877382 in words is "twenty-five billion, six hundred twenty-one million, eight hundred seventy-seven thousand, three hundred eighty-two".