109145085844 has 24 divisors (see below), whose sum is σ = 194925811808. Its totient is φ = 53460997920.

The previous prime is 109145085827. The next prime is 109145085853. The reversal of 109145085844 is 448580541901.

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, 1076514 + ... + 1173529.

Almost surely, 2^109145085844 is an apocalyptic number.

It is an amenable number.

109145085844 is a deficient number, since it is larger than the sum of its proper divisors (85780725964).

109145085844 is a wasteful number, since it uses less digits than its factorization.

109145085844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250295 (or 2250293 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 49.

The spelling of 109145085844 in words is "one hundred nine billion, one hundred forty-five million, eighty-five thousand, eight hundred forty-four".