139399091577 has 96 divisors (see below), whose sum is σ = 213497856000. Its totient is φ = 87563548800.

The previous prime is 139399091551. The next prime is 139399091591. The reversal of 139399091577 is 775190993931.

139399091577 is a `hidden beast` number, since 1 + 393 + 9 + 90 + 9 + 157 + 7 = 666.

139399091577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139399091577 - 2¹⁰ = 139399090553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139399091597) 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 in 95 ways as a sum of consecutive naturals, for example, 323431552 + ... + 323431982.

It is an arithmetic number, because the mean of its divisors is an integer number (2223936000).

Almost surely, 2^139399091577 is an apocalyptic number.

It is an amenable number.

139399091577 is a deficient number, since it is larger than the sum of its proper divisors (74098764423).

139399091577 is a wasteful number, since it uses less digits than its factorization.

139399091577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 14467005, while the sum is 63.

The spelling of 139399091577 in words is "one hundred thirty-nine billion, three hundred ninety-nine million, ninety-one thousand, five hundred seventy-seven".