116379531638 has 4 divisors (see below), whose sum is σ = 174569297460. Its totient is φ = 58189765818.

The previous prime is 116379531637. The next prime is 116379531659. The reversal of 116379531638 is 836135973611.

116379531638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 116379531638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116379531637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29094882908 + ... + 29094882911.

It is an arithmetic number, because the mean of its divisors is an integer number (43642324365).

Almost surely, 2^116379531638 is an apocalyptic number.

116379531638 is a deficient number, since it is larger than the sum of its proper divisors (58189765822).

116379531638 is an equidigital number, since it uses as much as digits as its factorization.

116379531638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58189765821.

The product of its digits is 2449440, while the sum is 53.

The spelling of 116379531638 in words is "one hundred sixteen billion, three hundred seventy-nine million, five hundred thirty-one thousand, six hundred thirty-eight".