44786915778 has 32 divisors (see below), whose sum is σ = 98430189120. Its totient is φ = 13472725760.

The previous prime is 44786915773. The next prime is 44786915809. The reversal of 44786915778 is 87751968744.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (44786915773) 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, 2467563 + ... + 2485646.

It is an arithmetic number, because the mean of its divisors is an integer number (3075943410).

Almost surely, 2^44786915778 is an apocalyptic number.

44786915778 is an abundant number, since it is smaller than the sum of its proper divisors (53643273342).

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

44786915778 is a wasteful number, since it uses less digits than its factorization.

44786915778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4953362.

The product of its digits is 94832640, while the sum is 66.

The spelling of 44786915778 in words is "forty-four billion, seven hundred eighty-six million, nine hundred fifteen thousand, seven hundred seventy-eight".