12932821065 has 8 divisors (see below), whose sum is σ = 20692513728. Its totient is φ = 6897504560.

The previous prime is 12932820977. The next prime is 12932821081. The reversal of 12932821065 is 56012823921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12932821065 - 2⁸ = 12932820809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431094021 + ... + 431094050.

It is an arithmetic number, because the mean of its divisors is an integer number (2586564216).

Almost surely, 2^12932821065 is an apocalyptic number.

12932821065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12932821065 is a deficient number, since it is larger than the sum of its proper divisors (7759692663).

12932821065 is an equidigital number, since it uses as much as digits as its factorization.

12932821065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862188079.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 12932821065 in words is "twelve billion, nine hundred thirty-two million, eight hundred twenty-one thousand, sixty-five".