187864734345 has 16 divisors (see below), whose sum is σ = 300595574400. Its totient is φ = 100190525184.

The previous prime is 187864734319. The next prime is 187864734377. The reversal of 187864734345 is 543437468781.

It is not a de Polignac number, because 187864734345 - 2⁷ = 187864734217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159972 + ... + 633498.

It is an arithmetic number, because the mean of its divisors is an integer number (18787223400).

Almost surely, 2^187864734345 is an apocalyptic number.

187864734345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

187864734345 is a deficient number, since it is larger than the sum of its proper divisors (112730840055).

187864734345 is a wasteful number, since it uses less digits than its factorization.

187864734345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499984.

The product of its digits is 54190080, while the sum is 60.

The spelling of 187864734345 in words is "one hundred eighty-seven billion, eight hundred sixty-four million, seven hundred thirty-four thousand, three hundred forty-five".