43997479044 has 12 divisors (see below), whose sum is σ = 102660784464. Its totient is φ = 14665826344.

The previous prime is 43997479039. The next prime is 43997479087. The reversal of 43997479044 is 44097479934.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833228282 + ... + 1833228305.

It is an arithmetic number, because the mean of its divisors is an integer number (8555065372).

Almost surely, 2^43997479044 is an apocalyptic number.

It is an amenable number.

43997479044 is an abundant number, since it is smaller than the sum of its proper divisors (58663305420).

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

43997479044 is a wasteful number, since it uses less digits than its factorization.

43997479044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666456594 (or 3666456592 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 60.

The spelling of 43997479044 in words is "forty-three billion, nine hundred ninety-seven million, four hundred seventy-nine thousand, forty-four".