44648031915 has 12 divisors (see below), whose sum is σ = 77389922064. Its totient is φ = 23812283664.

The previous prime is 44648031913. The next prime is 44648031959. The reversal of 44648031915 is 51913084644.

It is not a de Polignac number, because 44648031915 - 2¹ = 44648031913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 992178487 = 44648031915 / (4 + 4 + 6 + 4 + 8 + 0 + 3 + 1 + 9 + 1 + 5).

It is not an unprimeable number, because it can be changed into a prime (44648031913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496089199 + ... + 496089288.

It is an arithmetic number, because the mean of its divisors is an integer number (6449160172).

Almost surely, 2^44648031915 is an apocalyptic number.

44648031915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

44648031915 is a deficient number, since it is larger than the sum of its proper divisors (32741890149).

44648031915 is a wasteful number, since it uses less digits than its factorization.

44648031915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992178498 (or 992178495 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 44648031915 in words is "forty-four billion, six hundred forty-eight million, thirty-one thousand, nine hundred fifteen".