2231344987968 has 56 divisors (see below), whose sum is σ = 5907194269408. Its totient is φ = 743349874176.

The previous prime is 2231344987961. The next prime is 2231344987973. The reversal of 2231344987968 is 8697894431322.

It is a super-3 number, since 3×2231344987968³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231344987899 and 2231344987908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231344987961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041671 + ... + 3703302.

Almost surely, 2^{2231344987968} is an apocalyptic number.

It is an amenable number.

2231344987968 is an abundant number, since it is smaller than the sum of its proper divisors (3675849281440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2231344987968 is a wasteful number, since it uses less digits than its factorization.

2231344987968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746711 (or 6746701 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 66.

The spelling of 2231344987968 in words is "two trillion, two hundred thirty-one billion, three hundred forty-four million, nine hundred eighty-seven thousand, nine hundred sixty-eight".