43909396608 has 128 divisors (see below), whose sum is σ = 145414333440. Its totient is φ = 11405030400.

The previous prime is 43909396537. The next prime is 43909396627. The reversal of 43909396608 is 80669390934.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×43909396608² (a number of 22 digits) contains 22 as substring.

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, 712948 + ... + 772083.

It is an arithmetic number, because the mean of its divisors is an integer number (1136049480).

Almost surely, 2^43909396608 is an apocalyptic number.

43909396608 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43909396608 is an abundant number, since it is smaller than the sum of its proper divisors (101504936832).

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

43909396608 is a wasteful number, since it uses less digits than its factorization.

43909396608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485066 (or 1485054 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 57.

The spelling of 43909396608 in words is "forty-three billion, nine hundred nine million, three hundred ninety-six thousand, six hundred eight".