8139820326913 has 16 divisors (see below), whose sum is σ = 8946473014080. Its totient is φ = 7344312307200.

The previous prime is 8139820326901. The next prime is 8139820326917. The reversal of 8139820326913 is 3196230289318.

It is not a de Polignac number, because 8139820326913 - 2⁹ = 8139820326401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8139820326917) 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, 4091373 + ... + 5746213.

It is an arithmetic number, because the mean of its divisors is an integer number (559154563380).

Almost surely, 2^{8139820326913} is an apocalyptic number.

It is an amenable number.

8139820326913 is a deficient number, since it is larger than the sum of its proper divisors (806652687167).

8139820326913 is a wasteful number, since it uses less digits than its factorization.

8139820326913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658208.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 8139820326913 in words is "eight trillion, one hundred thirty-nine billion, eight hundred twenty million, three hundred twenty-six thousand, nine hundred thirteen".