189227052931 has 8 divisors (see below), whose sum is σ = 216265273344. Its totient is φ = 162190278600.

The previous prime is 189227052899. The next prime is 189227052943. The reversal of 189227052931 is 139250722981.

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

It is not a de Polignac number, because 189227052931 - 2⁵ = 189227052899 is a prime.

It is a super-2 number, since 2×189227052931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189227032931) 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, 64885 + ... + 618598.

It is an arithmetic number, because the mean of its divisors is an integer number (27033159168).

Almost surely, 2^189227052931 is an apocalyptic number.

189227052931 is a deficient number, since it is larger than the sum of its proper divisors (27038220413).

189227052931 is an equidigital number, since it uses as much as digits as its factorization.

189227052931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723041.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 189227052931 in words is "one hundred eighty-nine billion, two hundred twenty-seven million, fifty-two thousand, nine hundred thirty-one".