57643623359 has 4 divisors (see below), whose sum is σ = 65878426704. Its totient is φ = 49408820016.

The previous prime is 57643623313. The next prime is 57643623371. The reversal of 57643623359 is 95332634675.

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 57643623359 - 2²⁰ = 57642574783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57643623359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57643623259) 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, 4117401662 + ... + 4117401675.

It is an arithmetic number, because the mean of its divisors is an integer number (16469606676).

Almost surely, 2^57643623359 is an apocalyptic number.

57643623359 is a deficient number, since it is larger than the sum of its proper divisors (8234803345).

57643623359 is an equidigital number, since it uses as much as digits as its factorization.

57643623359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234803344.

The product of its digits is 12247200, while the sum is 53.

The spelling of 57643623359 in words is "fifty-seven billion, six hundred forty-three million, six hundred twenty-three thousand, three hundred fifty-nine".