113251263639 has 16 divisors (see below), whose sum is σ = 156179005440. Its totient is φ = 72921754080.

The previous prime is 113251263617. The next prime is 113251263659. The reversal of 113251263639 is 936362152311.

It is not a de Polignac number, because 113251263639 - 2⁵ = 113251263607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113251263639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113251263659) 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 in 15 ways as a sum of consecutive naturals, for example, 1148887 + ... + 1243560.

It is an arithmetic number, because the mean of its divisors is an integer number (9761187840).

Almost surely, 2^113251263639 is an apocalyptic number.

113251263639 is a deficient number, since it is larger than the sum of its proper divisors (42927741801).

113251263639 is a wasteful number, since it uses less digits than its factorization.

113251263639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392990.

The product of its digits is 174960, while the sum is 42.

The spelling of 113251263639 in words is "one hundred thirteen billion, two hundred fifty-one million, two hundred sixty-three thousand, six hundred thirty-nine".