12640302795 has 16 divisors (see below), whose sum is σ = 20252093472. Its totient is φ = 6732291840.

The previous prime is 12640302769. The next prime is 12640302817. The reversal of 12640302795 is 59720304621.

It is not a de Polignac number, because 12640302795 - 2¹³ = 12640294603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563826 + ... + 585815.

It is an arithmetic number, because the mean of its divisors is an integer number (1265755842).

Almost surely, 2^12640302795 is an apocalyptic number.

12640302795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12640302795 is a deficient number, since it is larger than the sum of its proper divisors (7611790677).

12640302795 is a wasteful number, since it uses less digits than its factorization.

12640302795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150382.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 12640302795 in words is "twelve billion, six hundred forty million, three hundred two thousand, seven hundred ninety-five".