312744442263 has 16 divisors (see below), whose sum is σ = 454919141376. Its totient is φ = 189534530240.

The previous prime is 312744442247. The next prime is 312744442267. The reversal of 312744442263 is 362244447213.

It is not a de Polignac number, because 312744442263 - 2⁴ = 312744442247 is a prime.

It is a super-2 number, since 2×312744442263² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312744442267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716170 + ... + 1066952.

It is an arithmetic number, because the mean of its divisors is an integer number (28432446336).

Almost surely, 2^312744442263 is an apocalyptic number.

312744442263 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

312744442263 is a deficient number, since it is larger than the sum of its proper divisors (142174699113).

312744442263 is a wasteful number, since it uses less digits than its factorization.

312744442263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377814.

The product of its digits is 774144, while the sum is 42.

Adding to 312744442263 its reverse (362244447213), we get a palindrome (674988889476).

The spelling of 312744442263 in words is "three hundred twelve billion, seven hundred forty-four million, four hundred forty-two thousand, two hundred sixty-three".