189236870835 has 32 divisors (see below), whose sum is σ = 310208209920. Its totient is φ = 98450630400.

The previous prime is 189236870821. The next prime is 189236870887. The reversal of 189236870835 is 538078632981.

It is not a de Polignac number, because 189236870835 - 2⁸ = 189236870579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5344540 + ... + 5379830.

It is an arithmetic number, because the mean of its divisors is an integer number (9694006560).

Almost surely, 2^189236870835 is an apocalyptic number.

189236870835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189236870835 is a deficient number, since it is larger than the sum of its proper divisors (120971339085).

189236870835 is a wasteful number, since it uses less digits than its factorization.

189236870835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44059.

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 189236870835 in words is "one hundred eighty-nine billion, two hundred thirty-six million, eight hundred seventy thousand, eight hundred thirty-five".