187040135730 has 128 divisors (see below), whose sum is σ = 553197496320. Its totient is φ = 39514037760.

The previous prime is 187040135687. The next prime is 187040135743. The reversal of 187040135730 is 37531040781.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 408084 + ... + 735263.

It is an arithmetic number, because the mean of its divisors is an integer number (4321855440).

Almost surely, 2^187040135730 is an apocalyptic number.

187040135730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187040135730 is an abundant number, since it is smaller than the sum of its proper divisors (366157360590).

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

187040135730 is a wasteful number, since it uses less digits than its factorization.

187040135730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143424.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 187040135730 in words is "one hundred eighty-seven billion, forty million, one hundred thirty-five thousand, seven hundred thirty".