12622535639 has 32 divisors (see below), whose sum is σ = 15694786560. Its totient is φ = 9906624000.

The previous prime is 12622535633. The next prime is 12622535641. The reversal of 12622535639 is 93653522621.

It is not a de Polignac number, because 12622535639 - 2⁸ = 12622535383 is a prime.

It is a super-3 number, since 3×12622535639³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12622535639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12622535633) 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, 4505039 + ... + 4507839.

It is an arithmetic number, because the mean of its divisors is an integer number (490462080).

Almost surely, 2^12622535639 is an apocalyptic number.

12622535639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12622535639 is a deficient number, since it is larger than the sum of its proper divisors (3072250921).

12622535639 is a wasteful number, since it uses less digits than its factorization.

12622535639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951.

The product of its digits is 583200, while the sum is 44.

The spelling of 12622535639 in words is "twelve billion, six hundred twenty-two million, five hundred thirty-five thousand, six hundred thirty-nine".