620464444243 has 4 divisors (see below), whose sum is σ = 709102222000. Its totient is φ = 531826666488.

The previous prime is 620464444231. The next prime is 620464444297. The reversal of 620464444243 is 342444464026.

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 620464444243 - 2²⁵ = 620430889811 is a prime.

It is a super-2 number, since 2×620464444243² (a number of 24 digits) contains 22 as substring.

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 620464444243.

It is not an unprimeable number, because it can be changed into a prime (620464414243) 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, 44318888868 + ... + 44318888881.

It is an arithmetic number, because the mean of its divisors is an integer number (177275555500).

Almost surely, 2^620464444243 is an apocalyptic number.

620464444243 is a deficient number, since it is larger than the sum of its proper divisors (88637777757).

620464444243 is an equidigital number, since it uses as much as digits as its factorization.

620464444243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88637777756.

The product of its (nonzero) digits is 1769472, while the sum is 43.

The spelling of 620464444243 in words is "six hundred twenty billion, four hundred sixty-four million, four hundred forty-four thousand, two hundred forty-three".