109191364976 has 40 divisors (see below), whose sum is σ = 218747904000. Its totient is φ = 52746183360.

The previous prime is 109191364969. The next prime is 109191364987. The reversal of 109191364976 is 679463191901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113345 + ... + 480863.

It is an arithmetic number, because the mean of its divisors is an integer number (5468697600).

Almost surely, 2^109191364976 is an apocalyptic number.

109191364976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109191364976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109373952000).

109191364976 is an abundant number, since it is smaller than the sum of its proper divisors (109556539024).

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

109191364976 is a wasteful number, since it uses less digits than its factorization.

109191364976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368157 (or 368151 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 109191364976 in words is "one hundred nine billion, one hundred ninety-one million, three hundred sixty-four thousand, nine hundred seventy-six".