189635547268 has 12 divisors (see below), whose sum is σ = 331870758912. Its totient is φ = 94815330440.

The previous prime is 189635547253. The next prime is 189635547323. The reversal of 189635547268 is 862745536981.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430228 + ... + 751243.

It is an arithmetic number, because the mean of its divisors is an integer number (27655896576).

Almost surely, 2^189635547268 is an apocalyptic number.

It is an amenable number.

189635547268 is a deficient number, since it is larger than the sum of its proper divisors (142235211644).

189635547268 is a wasteful number, since it uses less digits than its factorization.

189635547268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221602 (or 1221600 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 64.

The spelling of 189635547268 in words is "one hundred eighty-nine billion, six hundred thirty-five million, five hundred forty-seven thousand, two hundred sixty-eight".