139309211879 has 2 divisors, whose sum is σ = 139309211880. Its totient is φ = 139309211878.

The previous prime is 139309211869. The next prime is 139309211887. The reversal of 139309211879 is 978112903931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139309211879 - 2⁴ = 139309211863 is a prime.

It is a super-2 number, since 2×139309211879² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139309211879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139309211849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69654605939 + 69654605940.

It is an arithmetic number, because the mean of its divisors is an integer number (69654605940).

Almost surely, 2^139309211879 is an apocalyptic number.

139309211879 is a deficient number, since it is larger than the sum of its proper divisors (1).

139309211879 is an equidigital number, since it uses as much as digits as its factorization.

139309211879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 53.

The spelling of 139309211879 in words is "one hundred thirty-nine billion, three hundred nine million, two hundred eleven thousand, eight hundred seventy-nine".