189388263332 has 12 divisors (see below), whose sum is σ = 331456799436. Its totient is φ = 94686320640.

The previous prime is 189388263313. The next prime is 189388263349. The reversal of 189388263332 is 233362883981.

189388263332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 118065083236 + 71323180096 = 343606^2 + 267064^2 .

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, 1898033 + ... + 1995320.

It is an arithmetic number, because the mean of its divisors is an integer number (27621399953).

Almost surely, 2^189388263332 is an apocalyptic number.

It is an amenable number.

189388263332 is a deficient number, since it is larger than the sum of its proper divisors (142068536104).

189388263332 is a wasteful number, since it uses less digits than its factorization.

189388263332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905518 (or 3905516 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 56.

The spelling of 189388263332 in words is "one hundred eighty-nine billion, three hundred eighty-eight million, two hundred sixty-three thousand, three hundred thirty-two".