187923379389 has 8 divisors (see below), whose sum is σ = 250569402720. Its totient is φ = 125279804496.

The previous prime is 187923379381. The next prime is 187923379417. The reversal of 187923379389 is 983973329781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 187923379389 - 2³ = 187923379381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187923379381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424834 + ... + 745875.

It is an arithmetic number, because the mean of its divisors is an integer number (31321175340).

Almost surely, 2^187923379389 is an apocalyptic number.

It is an amenable number.

187923379389 is a deficient number, since it is larger than the sum of its proper divisors (62646023331).

187923379389 is a wasteful number, since it uses less digits than its factorization.

187923379389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224219.

The product of its digits is 123451776, while the sum is 69.

The spelling of 187923379389 in words is "one hundred eighty-seven billion, nine hundred twenty-three million, three hundred seventy-nine thousand, three hundred eighty-nine".