139578374899 has 2 divisors, whose sum is σ = 139578374900. Its totient is φ = 139578374898.

The previous prime is 139578374743. The next prime is 139578374951. The reversal of 139578374899 is 998473875931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139578374899 - 2²³ = 139569986291 is a prime.

It is not a weakly prime, because it can be changed into another prime (139578374099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69789187449 + 69789187450.

It is an arithmetic number, because the mean of its divisors is an integer number (69789187450).

Almost surely, 2^139578374899 is an apocalyptic number.

139578374899 is a deficient number, since it is larger than the sum of its proper divisors (1).

139578374899 is an equidigital number, since it uses as much as digits as its factorization.

139578374899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 411505920, while the sum is 73.

The spelling of 139578374899 in words is "one hundred thirty-nine billion, five hundred seventy-eight million, three hundred seventy-four thousand, eight hundred ninety-nine".