189120926740 has 24 divisors (see below), whose sum is σ = 397166325192. Its totient is φ = 75646012800.

The previous prime is 189120926719. The next prime is 189120926759. The reversal of 189120926740 is 47629021981.

It can be written as a sum of positive squares in 4 ways, for example, as 6072149776 + 183048776964 = 77924^2 + 427842^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603690 + ... + 861790.

It is an arithmetic number, because the mean of its divisors is an integer number (16548596883).

Almost surely, 2^189120926740 is an apocalyptic number.

189120926740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189120926740 is an abundant number, since it is smaller than the sum of its proper divisors (208045398452).

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

189120926740 is a wasteful number, since it uses less digits than its factorization.

189120926740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294747 (or 294745 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 189120926740 in words is "one hundred eighty-nine billion, one hundred twenty million, nine hundred twenty-six thousand, seven hundred forty".