109779681634 has 24 divisors (see below), whose sum is σ = 193062666240. Its totient is φ = 46677969576.

The previous prime is 109779681623. The next prime is 109779681659. The reversal of 109779681634 is 436186977901.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4397794 + ... + 4422685.

It is an arithmetic number, because the mean of its divisors is an integer number (8044277760).

Almost surely, 2^109779681634 is an apocalyptic number.

109779681634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

109779681634 is a deficient number, since it is larger than the sum of its proper divisors (83282984606).

109779681634 is a wasteful number, since it uses less digits than its factorization.

109779681634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820622 (or 8820615 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 109779681634 in words is "one hundred nine billion, seven hundred seventy-nine million, six hundred eighty-one thousand, six hundred thirty-four".