44380138476465 has 48 divisors (see below), whose sum is σ = 85965607518336. Its totient is φ = 20992822329600.

The previous prime is 44380138476409. The next prime is 44380138476467. The reversal of 44380138476465 is 56467483108344.

44380138476465 is a `hidden beast` number, since 4 + 4 + 3 + 80 + 13 + 84 + 7 + 6 + 465 = 666.

It is not a de Polignac number, because 44380138476465 - 2¹¹ = 44380138474417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44380138476467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1093355869 + ... + 1093396458.

It is an arithmetic number, because the mean of its divisors is an integer number (1790950156632).

Almost surely, 2^{44380138476465} is an apocalyptic number.

44380138476465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44380138476465 is a deficient number, since it is larger than the sum of its proper divisors (41585469041871).

44380138476465 is a wasteful number, since it uses less digits than its factorization.

44380138476465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186752390 (or 2186752387 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 63.

The spelling of 44380138476465 in words is "forty-four trillion, three hundred eighty billion, one hundred thirty-eight million, four hundred seventy-six thousand, four hundred sixty-five".