139968950879 has 2 divisors, whose sum is σ = 139968950880. Its totient is φ = 139968950878.

The previous prime is 139968950843. The next prime is 139968950893. The reversal of 139968950879 is 978059869931.

139968950879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139968950879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139968950899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69984475439 + 69984475440.

It is an arithmetic number, because the mean of its divisors is an integer number (69984475440).

Almost surely, 2^139968950879 is an apocalyptic number.

139968950879 is a deficient number, since it is larger than the sum of its proper divisors (1).

139968950879 is an equidigital number, since it uses as much as digits as its factorization.

139968950879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264539520, while the sum is 74.

The spelling of 139968950879 in words is "one hundred thirty-nine billion, nine hundred sixty-eight million, nine hundred fifty thousand, eight hundred seventy-nine".