13121425944264 has 256 divisors, whose sum is σ = 36428637772800. Its totient is φ = 3905368473600.

The previous prime is 13121425944233. The next prime is 13121425944343. The reversal of 13121425944264 is 46244952412131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4140555672 + ... + 4140558840.

It is an arithmetic number, because the mean of its divisors is an integer number (142299366300).

Almost surely, 2^{13121425944264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13121425944264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18214318886400).

13121425944264 is an abundant number, since it is smaller than the sum of its proper divisors (23307211828536).

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

13121425944264 is a wasteful number, since it uses less digits than its factorization.

13121425944264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316 (or 4312 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The spelling of 13121425944264 in words is "thirteen trillion, one hundred twenty-one billion, four hundred twenty-five million, nine hundred forty-four thousand, two hundred sixty-four".