2581392905913 has 8 divisors (see below), whose sum is σ = 3441917268288. Its totient is φ = 1720898573744.

The previous prime is 2581392905881. The next prime is 2581392905947. The reversal of 2581392905913 is 3195092931852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2581392905913 - 2⁵ = 2581392905881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2581392905953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7306206 + ... + 7651367.

It is an arithmetic number, because the mean of its divisors is an integer number (430239658536).

Almost surely, 2^{2581392905913} is an apocalyptic number.

It is an amenable number.

2581392905913 is a deficient number, since it is larger than the sum of its proper divisors (860524362375).

2581392905913 is a wasteful number, since it uses less digits than its factorization.

2581392905913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015103.

The product of its (nonzero) digits is 5248800, while the sum is 57.

The spelling of 2581392905913 in words is "two trillion, five hundred eighty-one billion, three hundred ninety-two million, nine hundred five thousand, nine hundred thirteen".