189320427122 has 6 divisors (see below), whose sum is σ = 283981563693. Its totient is φ = 94659905892.

The previous prime is 189320427103. The next prime is 189320427151. The reversal of 189320427122 is 221724023981.

It can be written as a sum of positive squares in 2 ways, for example, as 173454757441 + 15865669681 = 416479^2 + 125959^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=307669.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189320427122.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 461504 + ... + 769172.

Almost surely, 2^189320427122 is an apocalyptic number.

189320427122 is a deficient number, since it is larger than the sum of its proper divisors (94661136571).

189320427122 is an frugal number, since it uses more digits than its factorization.

189320427122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615340 (or 307671 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 189320427122 in words is "one hundred eighty-nine billion, three hundred twenty million, four hundred twenty-seven thousand, one hundred twenty-two".