139515983377 has 2 divisors, whose sum is σ = 139515983378. Its totient is φ = 139515983376.

The previous prime is 139515983339. The next prime is 139515983389. The reversal of 139515983377 is 773389515931.

139515983377 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 can be written as a sum of positive squares in only one way, i.e., 84276412416 + 55239570961 = 290304^2 + 235031^2 .

It is a cyclic number.

It is not a de Polignac number, because 139515983377 - 2⁷ = 139515983249 is a prime.

It is not a weakly prime, because it can be changed into another prime (139515983077) 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, 69757991688 + 69757991689.

It is an arithmetic number, because the mean of its divisors is an integer number (69757991689).

Almost surely, 2^139515983377 is an apocalyptic number.

It is an amenable number.

139515983377 is a deficient number, since it is larger than the sum of its proper divisors (1).

139515983377 is an equidigital number, since it uses as much as digits as its factorization.

139515983377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21432600, while the sum is 61.

The spelling of 139515983377 in words is "one hundred thirty-nine billion, five hundred fifteen million, nine hundred eighty-three thousand, three hundred seventy-seven".