4431793063440 has 80 divisors (see below), whose sum is σ = 13738815802368. Its totient is φ = 1181789349888.

The previous prime is 4431793063393. The next prime is 4431793063493. The reversal of 4431793063440 is 443603971344.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 4431793063440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15695992 + ... + 15975848.

Almost surely, 2^{4431793063440} is an apocalyptic number.

4431793063440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4431793063440 is an abundant number, since it is smaller than the sum of its proper divisors (9307022738928).

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

4431793063440 is a wasteful number, since it uses less digits than its factorization.

4431793063440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345856 (or 345850 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 48.

The spelling of 4431793063440 in words is "four trillion, four hundred thirty-one billion, seven hundred ninety-three million, sixty-three thousand, four hundred forty".