7814531332668 has 24 divisors (see below), whose sum is σ = 19193585729920. Its totient is φ = 2467746736560.

The previous prime is 7814531332567. The next prime is 7814531332669. The reversal of 7814531332668 is 8662331354187.

It is a super-2 number, since 2×7814531332668² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7814531332669) 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, 17137129888 + ... + 17137130343.

Almost surely, 2^{7814531332668} is an apocalyptic number.

It is an amenable number.

7814531332668 is an abundant number, since it is smaller than the sum of its proper divisors (11379054397252).

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

7814531332668 is a wasteful number, since it uses less digits than its factorization.

7814531332668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34274260257 (or 34274260255 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The spelling of 7814531332668 in words is "seven trillion, eight hundred fourteen billion, five hundred thirty-one million, three hundred thirty-two thousand, six hundred sixty-eight".