43319964144 has 40 divisors (see below), whose sum is σ = 112018580352. Its totient is φ = 14425965760.

The previous prime is 43319964139. The next prime is 43319964229. The reversal of 43319964144 is 44146991334.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 43319964093 and 43319964102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388194 + ... + 487169.

Almost surely, 2^43319964144 is an apocalyptic number.

It is an amenable number.

43319964144 is an abundant number, since it is smaller than the sum of its proper divisors (68698616208).

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

43319964144 is a wasteful number, since it uses less digits than its factorization.

43319964144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876405 (or 876399 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 48.

The spelling of 43319964144 in words is "forty-three billion, three hundred nineteen million, nine hundred sixty-four thousand, one hundred forty-four".