139511768387 has 6 divisors (see below), whose sum is σ = 148201082988. Its totient is φ = 131305193504.

The previous prime is 139511768381. The next prime is 139511768413. The reversal of 139511768387 is 783867115931.

It is not a de Polignac number, because 139511768387 - 2⁶ = 139511768323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139511768381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241369553 + ... + 241370130.

It is an arithmetic number, because the mean of its divisors is an integer number (24700180498).

Almost surely, 2^139511768387 is an apocalyptic number.

139511768387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

139511768387 is a deficient number, since it is larger than the sum of its proper divisors (8689314601).

139511768387 is an equidigital number, since it uses as much as digits as its factorization.

139511768387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482739717 (or 482739700 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 59.

The spelling of 139511768387 in words is "one hundred thirty-nine billion, five hundred eleven million, seven hundred sixty-eight thousand, three hundred eighty-seven".