139747243799 has 2 divisors, whose sum is σ = 139747243800. Its totient is φ = 139747243798.

The previous prime is 139747243763. The next prime is 139747243813. The reversal of 139747243799 is 997342747931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139747243799 - 2²⁴ = 139730466583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139747243199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69873621899 + 69873621900.

It is an arithmetic number, because the mean of its divisors is an integer number (69873621900).

Almost surely, 2^139747243799 is an apocalyptic number.

139747243799 is a deficient number, since it is larger than the sum of its proper divisors (1).

139747243799 is an equidigital number, since it uses as much as digits as its factorization.

139747243799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72013536, while the sum is 65.

The spelling of 139747243799 in words is "one hundred thirty-nine billion, seven hundred forty-seven million, two hundred forty-three thousand, seven hundred ninety-nine".