25813672481389 has 32 divisors (see below), whose sum is σ = 28157037834240. Its totient is φ = 23523053840832.

The previous prime is 25813672481383. The next prime is 25813672481411. The reversal of 25813672481389 is 98318427631852.

It is a de Polignac number, because none of the positive numbers 2^k-25813672481389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25813672481383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 742544322 + ... + 742579084.

It is an arithmetic number, because the mean of its divisors is an integer number (879907432320).

Almost surely, 2^{25813672481389} is an apocalyptic number.

It is an amenable number.

25813672481389 is a deficient number, since it is larger than the sum of its proper divisors (2343365352851).

25813672481389 is a wasteful number, since it uses less digits than its factorization.

25813672481389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36729.

The product of its digits is 139345920, while the sum is 67.

The spelling of 25813672481389 in words is "twenty-five trillion, eight hundred thirteen billion, six hundred seventy-two million, four hundred eighty-one thousand, three hundred eighty-nine".