45181778056 has 16 divisors (see below), whose sum is σ = 85507572240. Its totient is φ = 22379758800.

The previous prime is 45181778053. The next prime is 45181778071. The reversal of 45181778056 is 65087718154.

It is a junction number, because it is equal to n+sod(n) for n = 45181777994 and 45181778012.

It is not an unprimeable number, because it can be changed into a prime (45181778053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26390370 + ... + 26392081.

It is an arithmetic number, because the mean of its divisors is an integer number (5344223265).

Almost surely, 2^45181778056 is an apocalyptic number.

It is an amenable number.

45181778056 is a deficient number, since it is larger than the sum of its proper divisors (40325794184).

45181778056 is a wasteful number, since it uses less digits than its factorization.

45181778056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52782564 (or 52782560 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 45181778056 in words is "forty-five billion, one hundred eighty-one million, seven hundred seventy-eight thousand, fifty-six".