115598672639 has 4 divisors (see below), whose sum is σ = 116621669856. Its totient is φ = 114575675424.

The previous prime is 115598672633. The next prime is 115598672659. The reversal of 115598672639 is 936276895511.

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-115598672639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115598672633) 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, 511498439 + ... + 511498664.

It is an arithmetic number, because the mean of its divisors is an integer number (29155417464).

Almost surely, 2^115598672639 is an apocalyptic number.

115598672639 is a deficient number, since it is larger than the sum of its proper divisors (1022997217).

115598672639 is a wasteful number, since it uses less digits than its factorization.

115598672639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022997216.

The product of its digits is 24494400, while the sum is 62.

The spelling of 115598672639 in words is "one hundred fifteen billion, five hundred ninety-eight million, six hundred seventy-two thousand, six hundred thirty-nine".