45440378474 has 24 divisors (see below), whose sum is σ = 70820985900. Its totient is φ = 21862275840.

The previous prime is 45440378453. The next prime is 45440378479. The reversal of 45440378474 is 47487304454.

It can be written as a sum of positive squares in 6 ways, for example, as 202066225 + 45238312249 = 14215^2 + 212693^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45440378479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152852 + ... + 338000.

Almost surely, 2^45440378474 is an apocalyptic number.

45440378474 is a deficient number, since it is larger than the sum of its proper divisors (25380607426).

45440378474 is a wasteful number, since it uses less digits than its factorization.

45440378474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185306 (or 185265 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 50.

The spelling of 45440378474 in words is "forty-five billion, four hundred forty million, three hundred seventy-eight thousand, four hundred seventy-four".