13051623621 has 16 divisors (see below), whose sum is σ = 18353269440. Its totient is φ = 8227290240.

The previous prime is 13051623619. The next prime is 13051623671. The reversal of 13051623621 is 12632615031.

It is not a de Polignac number, because 13051623621 - 2¹ = 13051623619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13051623601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190050 + ... + 249443.

It is an arithmetic number, because the mean of its divisors is an integer number (1147079340).

Almost surely, 2^13051623621 is an apocalyptic number.

It is an amenable number.

13051623621 is a deficient number, since it is larger than the sum of its proper divisors (5301645819).

13051623621 is a wasteful number, since it uses less digits than its factorization.

13051623621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440036.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 13051623621 in words is "thirteen billion, fifty-one million, six hundred twenty-three thousand, six hundred twenty-one".