43953781364 has 12 divisors (see below), whose sum is σ = 76923288288. Its totient is φ = 21975699000.

The previous prime is 43953781363. The next prime is 43953781397. The reversal of 43953781364 is 46318735934.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43953781363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212192 + ... + 364599.

It is an arithmetic number, because the mean of its divisors is an integer number (6410274024).

Almost surely, 2^43953781364 is an apocalyptic number.

It is an amenable number.

43953781364 is a deficient number, since it is larger than the sum of its proper divisors (32969506924).

43953781364 is a wasteful number, since it uses less digits than its factorization.

43953781364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595846 (or 595844 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 53.

The spelling of 43953781364 in words is "forty-three billion, nine hundred fifty-three million, seven hundred eighty-one thousand, three hundred sixty-four".