189151927056 has 105 divisors (see below), whose sum is σ = 549607909431. Its totient is φ = 63034985376.

The previous prime is 189151927049. The next prime is 189151927061. The reversal of 189151927056 is 650729151981.

It is a happy number.

The square root of 189151927056 is 434916.

It is a perfect power (a square), and thus also a powerful number.

189151927056 is a `hidden beast` number, since 1 + 8 + 9 + 1 + 519 + 2 + 70 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 189151926993 and 189151927011.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 46968915 + ... + 46972941.

Almost surely, 2^189151927056 is an apocalyptic number.

189151927056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

189151927056 is the 434916-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189151927056

189151927056 is an abundant number, since it is smaller than the sum of its proper divisors (360455982375).

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

189151927056 is an frugal number, since it uses more digits than its factorization.

189151927056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 54.

The spelling of 189151927056 in words is "one hundred eighty-nine billion, one hundred fifty-one million, nine hundred twenty-seven thousand, fifty-six".