43807738656 has 96 divisors (see below), whose sum is σ = 125853751296. Its totient is φ = 13232288000.

The previous prime is 43807738649. The next prime is 43807738673. The reversal of 43807738656 is 65683770834.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 43807738596 and 43807738605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261721 + ... + 395111.

It is an arithmetic number, because the mean of its divisors is an integer number (1310976576).

Almost surely, 2^43807738656 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 43807738656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62926875648).

43807738656 is an abundant number, since it is smaller than the sum of its proper divisors (82046012640).

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

43807738656 is a wasteful number, since it uses less digits than its factorization.

43807738656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133726 (or 133718 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 43807738656 in words is "forty-three billion, eight hundred seven million, seven hundred thirty-eight thousand, six hundred fifty-six".