12620044437 has 32 divisors (see below), whose sum is σ = 22592532480. Its totient is φ = 6051568320.

The previous prime is 12620044429. The next prime is 12620044441. The reversal of 12620044437 is 73444002621.

It is not a de Polignac number, because 12620044437 - 2³ = 12620044429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 12620044398 and 12620044407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620044457) 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, 2098237 + ... + 2104242.

It is an arithmetic number, because the mean of its divisors is an integer number (706016640).

Almost surely, 2^12620044437 is an apocalyptic number.

It is an amenable number.

12620044437 is a deficient number, since it is larger than the sum of its proper divisors (9972488043).

12620044437 is a wasteful number, since it uses less digits than its factorization.

12620044437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202513.

The product of its (nonzero) digits is 32256, while the sum is 33.

The spelling of 12620044437 in words is "twelve billion, six hundred twenty million, forty-four thousand, four hundred thirty-seven".