187419894672 has 40 divisors (see below), whose sum is σ = 484823319520. Its totient is φ = 62388748800.

The previous prime is 187419894659. The next prime is 187419894721. The reversal of 187419894672 is 276498914781.

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, 2606329 + ... + 2677272.

It is an arithmetic number, because the mean of its divisors is an integer number (12120582988).

Almost surely, 2^187419894672 is an apocalyptic number.

187419894672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

187419894672 is an abundant number, since it is smaller than the sum of its proper divisors (297403424848).

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

187419894672 is a wasteful number, since it uses less digits than its factorization.

187419894672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284351 (or 5284345 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 66.

The spelling of 187419894672 in words is "one hundred eighty-seven billion, four hundred nineteen million, eight hundred ninety-four thousand, six hundred seventy-two".