43974669312 has 880 divisors, whose sum is σ = 162641191680. Its totient is φ = 11561730048.

The previous prime is 43974669307. The next prime is 43974669329. The reversal of 43974669312 is 21396647934.

It is a happy number.

43974669312 is a `hidden beast` number, since 4 + 3 + 97 + 466 + 93 + 1 + 2 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 494097364 + ... + 494097452.

It is an arithmetic number, because the mean of its divisors is an integer number (184819536).

Almost surely, 2^43974669312 is an apocalyptic number.

43974669312 is a gapful number since it is divisible by the number (42) 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 43974669312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81320595840).

43974669312 is an abundant number, since it is smaller than the sum of its proper divisors (118666522368).

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

43974669312 is a wasteful number, since it uses less digits than its factorization.

43974669312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 161 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 43974669312 in words is "forty-three billion, nine hundred seventy-four million, six hundred sixty-nine thousand, three hundred twelve".