43473812772 has 24 divisors (see below), whose sum is σ = 109241888896. Its totient is φ = 13376557728.

The previous prime is 43473812749. The next prime is 43473812773. The reversal of 43473812772 is 27721837434.

It is not an unprimeable number, because it can be changed into a prime (43473812773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139338988 + ... + 139339299.

Almost surely, 2^43473812772 is an apocalyptic number.

It is an amenable number.

43473812772 is an abundant number, since it is smaller than the sum of its proper divisors (65768076124).

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

43473812772 is a wasteful number, since it uses less digits than its factorization.

43473812772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278678307 (or 278678305 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 48.

The spelling of 43473812772 in words is "forty-three billion, four hundred seventy-three million, eight hundred twelve thousand, seven hundred seventy-two".