186897349568 has 56 divisors (see below), whose sum is σ = 388285969680. Its totient is φ = 89139169280.

The previous prime is 186897349567. The next prime is 186897349589. The reversal of 186897349568 is 865943798681.

It is a junction number, because it is equal to n+sod(n) for n = 186897349495 and 186897349504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186897349567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452573 + ... + 760668.

It is an arithmetic number, because the mean of its divisors is an integer number (6933678030).

Almost surely, 2^186897349568 is an apocalyptic number.

It is an amenable number.

186897349568 is an abundant number, since it is smaller than the sum of its proper divisors (201388620112).

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

186897349568 is a wasteful number, since it uses less digits than its factorization.

186897349568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213365 (or 1213355 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 74.

The spelling of 186897349568 in words is "one hundred eighty-six billion, eight hundred ninety-seven million, three hundred forty-nine thousand, five hundred sixty-eight".