43920646327 has 4 divisors (see below), whose sum is σ = 46504213776. Its totient is φ = 41337078880.

The previous prime is 43920646307. The next prime is 43920646331. The reversal of 43920646327 is 72364602934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43920646327 - 2³¹ = 41773162679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43920646307) 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, 1291783699 + ... + 1291783732.

It is an arithmetic number, because the mean of its divisors is an integer number (11626053444).

Almost surely, 2^43920646327 is an apocalyptic number.

43920646327 is a deficient number, since it is larger than the sum of its proper divisors (2583567449).

43920646327 is a wasteful number, since it uses less digits than its factorization.

43920646327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583567448.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 43920646327 in words is "forty-three billion, nine hundred twenty million, six hundred forty-six thousand, three hundred twenty-seven".