187383272139 has 54 divisors (see below), whose sum is σ = 331496294220. Its totient is φ = 101419117632.

The previous prime is 187383272129. The next prime is 187383272143. The reversal of 187383272139 is 931272383781.

187383272139 is a `hidden beast` number, since 187 + 3 + 8 + 327 + 2 + 139 = 666.

It is not a de Polignac number, because 187383272139 - 2⁹ = 187383271627 is a prime.

It is a super-2 number, since 2×187383272139² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (187383272129) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 39621927 + ... + 39626655.

Almost surely, 2^187383272139 is an apocalyptic number.

187383272139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

187383272139 is a deficient number, since it is larger than the sum of its proper divisors (144113022081).

187383272139 is an frugal number, since it uses more digits than its factorization.

187383272139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9497 (or 4758 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 187383272139 in words is "one hundred eighty-seven billion, three hundred eighty-three million, two hundred seventy-two thousand, one hundred thirty-nine".