139377173697 has 12 divisors (see below), whose sum is σ = 201359134080. Its totient is φ = 92901246648.

The previous prime is 139377173693. The next prime is 139377173723. The reversal of 139377173697 is 796371773931.

139377173697 is a `hidden beast` number, since 1 + 3 + 9 + 377 + 173 + 6 + 97 = 666.

It is not a de Polignac number, because 139377173697 - 2² = 139377173693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139377173693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1353333 + ... + 1452674.

It is an arithmetic number, because the mean of its divisors is an integer number (16779927840).

Almost surely, 2^139377173697 is an apocalyptic number.

It is an amenable number.

139377173697 is a deficient number, since it is larger than the sum of its proper divisors (61981960383).

139377173697 is a wasteful number, since it uses less digits than its factorization.

139377173697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811532 (or 2811529 counting only the distinct ones).

The product of its digits is 31505922, while the sum is 63.

The spelling of 139377173697 in words is "one hundred thirty-nine billion, three hundred seventy-seven million, one hundred seventy-three thousand, six hundred ninety-seven".