187089318904 has 8 divisors (see below), whose sum is σ = 350792472960. Its totient is φ = 93544659448.

The previous prime is 187089318877. The next prime is 187089318919. The reversal of 187089318904 is 409813980781.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×187089318904² (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 as a sum of consecutive naturals, namely, 11693082424 + ... + 11693082439.

It is an arithmetic number, because the mean of its divisors is an integer number (43849059120).

Almost surely, 2^187089318904 is an apocalyptic number.

It is an amenable number.

187089318904 is a deficient number, since it is larger than the sum of its proper divisors (163703154056).

187089318904 is a wasteful number, since it uses less digits than its factorization.

187089318904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386164869 (or 23386164865 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 58.

The spelling of 187089318904 in words is "one hundred eighty-seven billion, eighty-nine million, three hundred eighteen thousand, nine hundred four".