43864532316 has 180 divisors, whose sum is σ = 126978404784. Its totient is φ = 13193642880.

The previous prime is 43864532279. The next prime is 43864532333. The reversal of 43864532316 is 61323546834.

43864532316 is a `hidden beast` number, since 4 + 3 + 86 + 4 + 532 + 31 + 6 = 666.

43864532316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5366865 + ... + 5375031.

Almost surely, 2^43864532316 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 43864532316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63489202392).

43864532316 is an abundant number, since it is smaller than the sum of its proper divisors (83113872468).

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

43864532316 is a wasteful number, since it uses less digits than its factorization.

43864532316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8342 (or 8320 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 43864532316 in words is "forty-three billion, eight hundred sixty-four million, five hundred thirty-two thousand, three hundred sixteen".