186374986457 has 24 divisors (see below), whose sum is σ = 209922104736. Its totient is φ = 164090528000.

The previous prime is 186374986453. The next prime is 186374986507. The reversal of 186374986457 is 754689473681.

It is a happy number.

186374986457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 186374986457 - 2² = 186374986453 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2496482 + ... + 2570052.

It is an arithmetic number, because the mean of its divisors is an integer number (8746754364).

Almost surely, 2^186374986457 is an apocalyptic number.

It is an amenable number.

186374986457 is a deficient number, since it is larger than the sum of its proper divisors (23547118279).

186374986457 is a wasteful number, since it uses less digits than its factorization.

186374986457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73801 (or 73760 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 68.

The spelling of 186374986457 in words is "one hundred eighty-six billion, three hundred seventy-four million, nine hundred eighty-six thousand, four hundred fifty-seven".