186374986456 has 8 divisors (see below), whose sum is σ = 349453099620. Its totient is φ = 93187493224.

The previous prime is 186374986453. The next prime is 186374986507. The reversal of 186374986456 is 654689473681.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 186374986391 and 186374986400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186374986453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11648436646 + ... + 11648436661.

Almost surely, 2^186374986456 is an apocalyptic number.

It is an amenable number.

186374986456 is a deficient number, since it is larger than the sum of its proper divisors (163078113164).

186374986456 is a wasteful number, since it uses less digits than its factorization.

186374986456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23296873313 (or 23296873309 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 67.

The spelling of 186374986456 in words is "one hundred eighty-six billion, three hundred seventy-four million, nine hundred eighty-six thousand, four hundred fifty-six".