6993921317759 has 4 divisors (see below), whose sum is σ = 7219531682880. Its totient is φ = 6768310952640.

The previous prime is 6993921317743. The next prime is 6993921317771. The reversal of 6993921317759 is 9577131293996.

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 6993921317759 - 2⁴ = 6993921317743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6993921317692 and 6993921317701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6993921337759) 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, 112805182514 + ... + 112805182575.

It is an arithmetic number, because the mean of its divisors is an integer number (1804882920720).

Almost surely, 2^{6993921317759} is an apocalyptic number.

6993921317759 is a deficient number, since it is larger than the sum of its proper divisors (225610365121).

6993921317759 is a wasteful number, since it uses less digits than its factorization.

6993921317759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225610365120.

The product of its digits is 173604060, while the sum is 71.

The spelling of 6993921317759 in words is "six trillion, nine hundred ninety-three billion, nine hundred twenty-one million, three hundred seventeen thousand, seven hundred fifty-nine".