44878393971 has 12 divisors (see below), whose sum is σ = 64995392280. Its totient is φ = 29839985280.

The previous prime is 44878393939. The next prime is 44878393981. The reversal of 44878393971 is 17939387844.

44878393971 is a `hidden beast` number, since 4 + 487 + 83 + 9 + 3 + 9 + 71 = 666.

It is not a de Polignac number, because 44878393971 - 2⁵ = 44878393939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44878393899 and 44878393908.

It is not an unprimeable number, because it can be changed into a prime (44878393981) 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, 6575070 + ... + 6581891.

It is an arithmetic number, because the mean of its divisors is an integer number (5416282690).

Almost surely, 2^44878393971 is an apocalyptic number.

44878393971 is a deficient number, since it is larger than the sum of its proper divisors (20116998309).

44878393971 is a wasteful number, since it uses less digits than its factorization.

44878393971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13157346 (or 13157343 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 44878393971 in words is "forty-four billion, eight hundred seventy-eight million, three hundred ninety-three thousand, nine hundred seventy-one".