109664579438 has 16 divisors (see below), whose sum is σ = 180179128080. Its totient is φ = 49827313536.

The previous prime is 109664579429. The next prime is 109664579441. The reversal of 109664579438 is 834975466901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55609856 + ... + 55611827.

It is an arithmetic number, because the mean of its divisors is an integer number (11261195505).

Almost surely, 2^109664579438 is an apocalyptic number.

109664579438 is a deficient number, since it is larger than the sum of its proper divisors (70514548642).

109664579438 is a wasteful number, since it uses less digits than its factorization.

109664579438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111221731.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 109664579438 in words is "one hundred nine billion, six hundred sixty-four million, five hundred seventy-nine thousand, four hundred thirty-eight".