109806467634639 has 12 divisors (see below), whose sum is σ = 158670842499000. Its totient is φ = 73175926974864.

The previous prime is 109806467634607. The next prime is 109806467634679. The reversal of 109806467634639 is 936436764608901.

109806467634639 is a `hidden beast` number, since 1 + 0 + 98 + 0 + 6 + 4 + 6 + 76 + 3 + 463 + 9 = 666.

It is not a de Polignac number, because 109806467634639 - 2⁵ = 109806467634607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109806467634679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2365373964 + ... + 2365420385.

It is an arithmetic number, because the mean of its divisors is an integer number (13222570208250).

Almost surely, 2^{109806467634639} is an apocalyptic number.

109806467634639 is a deficient number, since it is larger than the sum of its proper divisors (48864374864361).

109806467634639 is a wasteful number, since it uses less digits than its factorization.

109806467634639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730796934 (or 4730796931 counting only the distinct ones).

The product of its (nonzero) digits is 846526464, while the sum is 72.

The spelling of 109806467634639 in words is "one hundred nine trillion, eight hundred six billion, four hundred sixty-seven million, six hundred thirty-four thousand, six hundred thirty-nine".