44374561668 has 96 divisors (see below), whose sum is σ = 116677048320. Its totient is φ = 14583098880.

The previous prime is 44374561657. The next prime is 44374561711. The reversal of 44374561668 is 86616547344.

44374561668 is a `hidden beast` number, since 4 + 4 + 3 + 74 + 561 + 6 + 6 + 8 = 666.

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 31 ways as a sum of consecutive naturals, for example, 2321446 + ... + 2340482.

It is an arithmetic number, because the mean of its divisors is an integer number (1215385920).

Almost surely, 2^44374561668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44374561668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58338524160).

44374561668 is an abundant number, since it is smaller than the sum of its proper divisors (72302486652).

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

44374561668 is a wasteful number, since it uses less digits than its factorization.

44374561668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19354 (or 19346 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 44374561668 in words is "forty-four billion, three hundred seventy-four million, five hundred sixty-one thousand, six hundred sixty-eight".