13453320793944 has 32 divisors (see below), whose sum is σ = 34107010467840. Its totient is φ = 4421279133600.

The previous prime is 13453320793889. The next prime is 13453320793973. The reversal of 13453320793944 is 44939702335431.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

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, 3947568952 + ... + 3947572359.

It is an arithmetic number, because the mean of its divisors is an integer number (1065844077120).

Almost surely, 2^{13453320793944} is an apocalyptic number.

It is an amenable number.

13453320793944 is an abundant number, since it is smaller than the sum of its proper divisors (20653689673896).

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

13453320793944 is a wasteful number, since it uses less digits than its factorization.

13453320793944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895141391 (or 7895141387 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 57.

The spelling of 13453320793944 in words is "thirteen trillion, four hundred fifty-three billion, three hundred twenty million, seven hundred ninety-three thousand, nine hundred forty-four".