43493785936 has 80 divisors (see below), whose sum is σ = 87712042320. Its totient is φ = 20875345920.

The previous prime is 43493785921. The next prime is 43493785999. The reversal of 43493785936 is 63958739434.

It can be written as a sum of positive squares in 8 ways, for example, as 6345078336 + 37148707600 = 79656^2 + 192740^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46417660 + ... + 46418596.

It is an arithmetic number, because the mean of its divisors is an integer number (1096400529).

Almost surely, 2^43493785936 is an apocalyptic number.

It is an amenable number.

43493785936 is an abundant number, since it is smaller than the sum of its proper divisors (44218256384).

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

43493785936 is a wasteful number, since it uses less digits than its factorization.

43493785936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1946 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 61.

The spelling of 43493785936 in words is "forty-three billion, four hundred ninety-three million, seven hundred eighty-five thousand, nine hundred thirty-six".