6693938640422 has 16 divisors (see below), whose sum is σ = 10956372083712. Its totient is φ = 3041962074120.

The previous prime is 6693938640413. The next prime is 6693938640427. The reversal of 6693938640422 is 2240468393966.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6693938640427) 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, 36772538 + ... + 36954125.

It is an arithmetic number, because the mean of its divisors is an integer number (684773255232).

Almost surely, 2^{6693938640422} is an apocalyptic number.

6693938640422 is a deficient number, since it is larger than the sum of its proper divisors (4262433443290).

6693938640422 is a wasteful number, since it uses less digits than its factorization.

6693938640422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73730803.

The product of its (nonzero) digits is 80621568, while the sum is 62.

The spelling of 6693938640422 in words is "six trillion, six hundred ninety-three billion, nine hundred thirty-eight million, six hundred forty thousand, four hundred twenty-two".