113977131671587 has 4 divisors (see below), whose sum is σ = 117057594689776. Its totient is φ = 110896668653400.

The previous prime is 113977131671569. The next prime is 113977131671617. The reversal of 113977131671587 is 785176131779311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113977131671587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113977131171587) 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, 1540231509039 + ... + 1540231509112.

It is an arithmetic number, because the mean of its divisors is an integer number (29264398672444).

Almost surely, 2^{113977131671587} is an apocalyptic number.

113977131671587 is a deficient number, since it is larger than the sum of its proper divisors (3080463018189).

113977131671587 is an equidigital number, since it uses as much as digits as its factorization.

113977131671587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080463018188.

The product of its digits is 46675440, while the sum is 67.

The spelling of 113977131671587 in words is "one hundred thirteen trillion, nine hundred seventy-seven billion, one hundred thirty-one million, six hundred seventy-one thousand, five hundred eighty-seven".