139026669937 has 2 divisors, whose sum is σ = 139026669938. Its totient is φ = 139026669936.

The previous prime is 139026669931. The next prime is 139026670007. The reversal of 139026669937 is 739966620931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92567454001 + 46459215936 = 304249^2 + 215544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139026669937 is a prime.

It is not a weakly prime, because it can be changed into another prime (139026669931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69513334968 + 69513334969.

It is an arithmetic number, because the mean of its divisors is an integer number (69513334969).

Almost surely, 2^139026669937 is an apocalyptic number.

It is an amenable number.

139026669937 is a deficient number, since it is larger than the sum of its proper divisors (1).

139026669937 is an equidigital number, since it uses as much as digits as its factorization.

139026669937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19840464, while the sum is 61.

The spelling of 139026669937 in words is "one hundred thirty-nine billion, twenty-six million, six hundred sixty-nine thousand, nine hundred thirty-seven".