43423702656 has 64 divisors (see below), whose sum is σ = 120359200320. Its totient is φ = 13845235712.

The previous prime is 43423702603. The next prime is 43423702669. The reversal of 43423702656 is 65620732434.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2449485 + ... + 2467148.

It is an arithmetic number, because the mean of its divisors is an integer number (1880612505).

Almost surely, 2^43423702656 is an apocalyptic number.

43423702656 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

43423702656 is an abundant number, since it is smaller than the sum of its proper divisors (76935497664).

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

43423702656 is a wasteful number, since it uses less digits than its factorization.

43423702656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916673 (or 4916661 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 43423702656 in words is "forty-three billion, four hundred twenty-three million, seven hundred two thousand, six hundred fifty-six".