139574993397 has 64 divisors (see below), whose sum is σ = 222344601600. Its totient is φ = 77807217600.

The previous prime is 139574993357. The next prime is 139574993413. The reversal of 139574993397 is 793399475931.

It is not a de Polignac number, because 139574993397 - 2⁷ = 139574993269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139574993357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52254372 + ... + 52257042.

It is an arithmetic number, because the mean of its divisors is an integer number (3474134400).

Almost surely, 2^139574993397 is an apocalyptic number.

It is an amenable number.

139574993397 is a deficient number, since it is larger than the sum of its proper divisors (82769608203).

139574993397 is a wasteful number, since it uses less digits than its factorization.

139574993397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919 (or 3905 counting only the distinct ones).

The product of its digits is 173604060, while the sum is 69.

The spelling of 139574993397 in words is "one hundred thirty-nine billion, five hundred seventy-four million, nine hundred ninety-three thousand, three hundred ninety-seven".