45681681186 has 32 divisors (see below), whose sum is σ = 103990824000. Its totient is φ = 14855830560.

The previous prime is 45681681181. The next prime is 45681681187. The reversal of 45681681186 is 68118618654.

45681681186 is a `hidden beast` number, since 4 + 568 + 1 + 68 + 1 + 18 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45681681181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10314336 + ... + 10318763.

It is an arithmetic number, because the mean of its divisors is an integer number (3249713250).

Almost surely, 2^45681681186 is an apocalyptic number.

45681681186 is an abundant number, since it is smaller than the sum of its proper divisors (58309142814).

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

45681681186 is a wasteful number, since it uses less digits than its factorization.

45681681186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20633151 (or 20633145 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The spelling of 45681681186 in words is "forty-five billion, six hundred eighty-one million, six hundred eighty-one thousand, one hundred eighty-six".