43305640644379 has 4 divisors (see below), whose sum is σ = 45584884888840. Its totient is φ = 41026396399920.

The previous prime is 43305640644367. The next prime is 43305640644391. The reversal of 43305640644379 is 97344604650334.

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

It is an interprime number because it is at equal distance from previous prime (43305640644367) and next prime (43305640644391).

It is a cyclic number.

It is not a de Polignac number, because 43305640644379 - 2²⁹ = 43305103773467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43305640644979) 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, 1139622122202 + ... + 1139622122239.

It is an arithmetic number, because the mean of its divisors is an integer number (11396221222210).

Almost surely, 2^{43305640644379} is an apocalyptic number.

43305640644379 is a deficient number, since it is larger than the sum of its proper divisors (2279244244461).

43305640644379 is a wasteful number, since it uses less digits than its factorization.

43305640644379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279244244460.

The product of its (nonzero) digits is 78382080, while the sum is 58.

The spelling of 43305640644379 in words is "forty-three trillion, three hundred five billion, six hundred forty million, six hundred forty-four thousand, three hundred seventy-nine".