43144663968 has 72 divisors (see below), whose sum is σ = 140220164448. Its totient is φ = 12327046272.

The previous prime is 43144663937. The next prime is 43144664051. The reversal of 43144663968 is 86936644134.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×43144663968² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10698546 + ... + 10702577.

It is an arithmetic number, because the mean of its divisors is an integer number (1947502284).

Almost surely, 2^43144663968 is an apocalyptic number.

43144663968 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43144663968 is an abundant number, since it is smaller than the sum of its proper divisors (97075500480).

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

43144663968 is a wasteful number, since it uses less digits than its factorization.

43144663968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21401146 (or 21401135 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 54.

The spelling of 43144663968 in words is "forty-three billion, one hundred forty-four million, six hundred sixty-three thousand, nine hundred sixty-eight".