25382137981620 has 96 divisors (see below), whose sum is σ = 81231169017600. Its totient is φ = 5801036719104.

The previous prime is 25382137981553. The next prime is 25382137981657. The reversal of 25382137981620 is 2618973128352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1009846 + ... + 7196114.

It is an arithmetic number, because the mean of its divisors is an integer number (846158010600).

Almost surely, 2^{25382137981620} is an apocalyptic number.

25382137981620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25382137981620 is an abundant number, since it is smaller than the sum of its proper divisors (55849031035980).

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

25382137981620 is a wasteful number, since it uses less digits than its factorization.

25382137981620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196057 (or 6196055 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 25382137981620 in words is "twenty-five trillion, three hundred eighty-two billion, one hundred thirty-seven million, nine hundred eighty-one thousand, six hundred twenty".