43930331136 has 144 divisors (see below), whose sum is σ = 130973431680. Its totient is φ = 14170890240.

The previous prime is 43930331083. The next prime is 43930331141. The reversal of 43930331136 is 63113303934.

43930331136 is a `hidden beast` number, since 4 + 3 + 9 + 303 + 311 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×43930331136² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 43930331136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532951 + ... + 609833.

It is an arithmetic number, because the mean of its divisors is an integer number (909537720).

Almost surely, 2^43930331136 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 43930331136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65486715840).

43930331136 is an abundant number, since it is smaller than the sum of its proper divisors (87043100544).

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

43930331136 is a wasteful number, since it uses less digits than its factorization.

43930331136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76942 (or 76919 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 36.

The spelling of 43930331136 in words is "forty-three billion, nine hundred thirty million, three hundred thirty-one thousand, one hundred thirty-six".