107821738631 has 16 divisors (see below), whose sum is σ = 119368304640. Its totient is φ = 96986691360.

The previous prime is 107821738613. The next prime is 107821738639. The reversal of 107821738631 is 136837128701.

It is a cyclic number.

It is not a de Polignac number, because 107821738631 - 2⁶ = 107821738567 is a prime.

It is a super-2 number, since 2×107821738631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107821738639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1695755 + ... + 1758188.

It is an arithmetic number, because the mean of its divisors is an integer number (7460519040).

Almost surely, 2^107821738631 is an apocalyptic number.

107821738631 is a deficient number, since it is larger than the sum of its proper divisors (11546566009).

107821738631 is a wasteful number, since it uses less digits than its factorization.

107821738631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454046.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 107821738631 in words is "one hundred seven billion, eight hundred twenty-one million, seven hundred thirty-eight thousand, six hundred thirty-one".