109376910891 has 6 divisors (see below), whose sum is σ = 157988871300. Its totient is φ = 72917940588.

The previous prime is 109376910887. The next prime is 109376910931. The reversal of 109376910891 is 198019673901.

It is a happy number.

109376910891 is a `hidden beast` number, since 109 + 376 + 91 + 0 + 89 + 1 = 666.

It is not a de Polignac number, because 109376910891 - 2² = 109376910887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109376915891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6076495041 + ... + 6076495058.

It is an arithmetic number, because the mean of its divisors is an integer number (26331478550).

Almost surely, 2^109376910891 is an apocalyptic number.

109376910891 is a deficient number, since it is larger than the sum of its proper divisors (48611960409).

109376910891 is a wasteful number, since it uses less digits than its factorization.

109376910891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12152990105 (or 12152990102 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The spelling of 109376910891 in words is "one hundred nine billion, three hundred seventy-six million, nine hundred ten thousand, eight hundred ninety-one".