44715869640 has 256 divisors, whose sum is σ = 160832044800. Its totient is φ = 10985490432.

The previous prime is 44715869621. The next prime is 44715869663. The reversal of 44715869640 is 4696851744.

44715869640 is a `hidden beast` number, since 4 + 471 + 5 + 86 + 96 + 4 + 0 = 666.

It is a super-2 number, since 2×44715869640² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7901692 + ... + 7907348.

It is an arithmetic number, because the mean of its divisors is an integer number (628250175).

Almost surely, 2^44715869640 is an apocalyptic number.

44715869640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44715869640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80416022400).

44715869640 is an abundant number, since it is smaller than the sum of its proper divisors (116116175160).

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

44715869640 is a wasteful number, since it uses less digits than its factorization.

44715869640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6253 (or 6243 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 44715869640 in words is "forty-four billion, seven hundred fifteen million, eight hundred sixty-nine thousand, six hundred forty".