43797947764 has 6 divisors (see below), whose sum is σ = 76646408594. Its totient is φ = 21898973880.

The previous prime is 43797947759. The next prime is 43797947779. The reversal of 43797947764 is 46774979734.

43797947764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 39723678864 + 4074268900 = 199308^2 + 63830^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43797947764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5474743467 + ... + 5474743474.

Almost surely, 2^43797947764 is an apocalyptic number.

It is an amenable number.

43797947764 is a deficient number, since it is larger than the sum of its proper divisors (32848460830).

43797947764 is a wasteful number, since it uses less digits than its factorization.

43797947764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10949486945 (or 10949486943 counting only the distinct ones).

The product of its digits is 224042112, while the sum is 67.

The spelling of 43797947764 in words is "forty-three billion, seven hundred ninety-seven million, nine hundred forty-seven thousand, seven hundred sixty-four".