45178882218 has 24 divisors (see below), whose sum is σ = 101513045088. Its totient is φ = 15059627244.

The previous prime is 45178882201. The next prime is 45178882223. The reversal of 45178882218 is 81228887154.

It is a happy number.

It is a super-2 number, since 2×45178882218² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46479846 + ... + 46480817.

It is an arithmetic number, because the mean of its divisors is an integer number (4229710212).

Almost surely, 2^45178882218 is an apocalyptic number.

45178882218 is an abundant number, since it is smaller than the sum of its proper divisors (56334162870).

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

45178882218 is an equidigital number, since it uses as much as digits as its factorization.

45178882218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92960680 (or 92960668 counting only the distinct ones).

The product of its digits is 2293760, while the sum is 54.

The spelling of 45178882218 in words is "forty-five billion, one hundred seventy-eight million, eight hundred eighty-two thousand, two hundred eighteen".