186320442772 has 6 divisors (see below), whose sum is σ = 326060774858. Its totient is φ = 93160221384.

The previous prime is 186320442757. The next prime is 186320442797. The reversal of 186320442772 is 277244023681.

It can be written as a sum of positive squares in only one way, i.e., 185904119556 + 416323216 = 431166^2 + 20404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23290055343 + ... + 23290055350.

Almost surely, 2^186320442772 is an apocalyptic number.

It is an amenable number.

186320442772 is a deficient number, since it is larger than the sum of its proper divisors (139740332086).

186320442772 is a wasteful number, since it uses less digits than its factorization.

186320442772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46580110697 (or 46580110695 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 186320442772 in words is "one hundred eighty-six billion, three hundred twenty million, four hundred forty-two thousand, seven hundred seventy-two".