139671735593 has 4 divisors (see below), whose sum is σ = 150415715268. Its totient is φ = 128927755920.

The previous prime is 139671735583. The next prime is 139671735607. The reversal of 139671735593 is 395537176931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49841455504 + 89830280089 = 223252^2 + 299717^2 .

It is a cyclic number.

It is not a de Polignac number, because 139671735593 - 2⁶ = 139671735529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139671735583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5371989818 + ... + 5371989843.

It is an arithmetic number, because the mean of its divisors is an integer number (37603928817).

Almost surely, 2^139671735593 is an apocalyptic number.

139671735593 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

139671735593 is a deficient number, since it is larger than the sum of its proper divisors (10743979675).

139671735593 is a wasteful number, since it uses less digits than its factorization.

139671735593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10743979674.

The product of its digits is 16074450, while the sum is 59.

The spelling of 139671735593 in words is "one hundred thirty-nine billion, six hundred seventy-one million, seven hundred thirty-five thousand, five hundred ninety-three".