43421320996 has 24 divisors (see below), whose sum is σ = 80186168160. Its totient is φ = 20516688000.

The previous prime is 43421320949. The next prime is 43421320997. The reversal of 43421320996 is 69902312434.

It is a super-2 number, since 2×43421320996² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (43421320997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681910 + ... + 742861.

It is an arithmetic number, because the mean of its divisors is an integer number (3341090340).

Almost surely, 2^43421320996 is an apocalyptic number.

It is an amenable number.

43421320996 is a deficient number, since it is larger than the sum of its proper divisors (36764847164).

43421320996 is a wasteful number, since it uses less digits than its factorization.

43421320996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425195 (or 1425193 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 43421320996 in words is "forty-three billion, four hundred twenty-one million, three hundred twenty thousand, nine hundred ninety-six".