45181138718 has 32 divisors (see below), whose sum is σ = 69620929056. Its totient is φ = 21983689728.

The previous prime is 45181138703. The next prime is 45181138733. The reversal of 45181138718 is 81783118154.

It is an interprime number because it is at equal distance from previous prime (45181138703) and next prime (45181138733).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4734680 + ... + 4744212.

It is an arithmetic number, because the mean of its divisors is an integer number (2175654033).

Almost surely, 2^45181138718 is an apocalyptic number.

45181138718 is a deficient number, since it is larger than the sum of its proper divisors (24439790338).

45181138718 is a wasteful number, since it uses less digits than its factorization.

45181138718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028.

The product of its digits is 215040, while the sum is 47.

The spelling of 45181138718 in words is "forty-five billion, one hundred eighty-one million, one hundred thirty-eight thousand, seven hundred eighteen".