189702818372 has 12 divisors (see below), whose sum is σ = 351508163580. Its totient is φ = 89271914496.

The previous prime is 189702818353. The next prime is 189702818377. The reversal of 189702818372 is 273818207981.

It can be written as a sum of positive squares in 2 ways, for example, as 170441819716 + 19260998656 = 412846^2 + 138784^2 .

It is not an unprimeable number, because it can be changed into a prime (189702818377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394873597 + ... + 1394873732.

It is an arithmetic number, because the mean of its divisors is an integer number (29292346965).

Almost surely, 2^189702818372 is an apocalyptic number.

It is an amenable number.

189702818372 is a deficient number, since it is larger than the sum of its proper divisors (161805345208).

189702818372 is a wasteful number, since it uses less digits than its factorization.

189702818372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789747350 (or 2789747348 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 56.

The spelling of 189702818372 in words is "one hundred eighty-nine billion, seven hundred two million, eight hundred eighteen thousand, three hundred seventy-two".