12608040621 has 16 divisors (see below), whose sum is σ = 18765457920. Its totient is φ = 7463532720.

The previous prime is 12608040611. The next prime is 12608040631. The reversal of 12608040621 is 12604080621.

It is an interprime number because it is at equal distance from previous prime (12608040611) and next prime (12608040631).

It is not a de Polignac number, because 12608040621 - 2²⁹ = 12071169709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12608040611) 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, 4441161 + ... + 4443998.

It is an arithmetic number, because the mean of its divisors is an integer number (1172841120).

Almost surely, 2^12608040621 is an apocalyptic number.

12608040621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12608040621 is a deficient number, since it is larger than the sum of its proper divisors (6157417299).

12608040621 is a wasteful number, since it uses less digits than its factorization.

12608040621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8885216.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 12608040621 in words is "twelve billion, six hundred eight million, forty thousand, six hundred twenty-one".