109534635678 has 32 divisors (see below), whose sum is σ = 236170037376. Its totient is φ = 33667352928.

The previous prime is 109534635631. The next prime is 109534635697. The reversal of 109534635678 is 876536435901.

It is a super-2 number, since 2×109534635678² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667576 + ... + 815307.

It is an arithmetic number, because the mean of its divisors is an integer number (7380313668).

Almost surely, 2^109534635678 is an apocalyptic number.

109534635678 is an abundant number, since it is smaller than the sum of its proper divisors (126635401698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109534635678 is a wasteful number, since it uses less digits than its factorization.

109534635678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483848.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 109534635678 in words is "one hundred nine billion, five hundred thirty-four million, six hundred thirty-five thousand, six hundred seventy-eight".