189079554250 has 16 divisors (see below), whose sum is σ = 353956926024. Its totient is φ = 75631821600.

The previous prime is 189079554221. The next prime is 189079554259. The reversal of 189079554250 is 52455970981.

It can be written as a sum of positive squares in 4 ways, for example, as 34113720601 + 154965833649 = 184699^2 + 393657^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189079554191 and 189079554200.

It is not an unprimeable number, because it can be changed into a prime (189079554259) 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, 378158859 + ... + 378159358.

Almost surely, 2^189079554250 is an apocalyptic number.

189079554250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189079554250 is a deficient number, since it is larger than the sum of its proper divisors (164877371774).

189079554250 is an equidigital number, since it uses as much as digits as its factorization.

189079554250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756318234 (or 756318224 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 189079554250 in words is "one hundred eighty-nine billion, seventy-nine million, five hundred fifty-four thousand, two hundred fifty".