694972420799 has 4 divisors (see below), whose sum is σ = 697207059120. Its totient is φ = 692737782480.

The previous prime is 694972420781. The next prime is 694972420817. The reversal of 694972420799 is 997024279496.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (694972420781) and next prime (694972420817).

It is a cyclic number.

It is not a de Polignac number, because 694972420799 - 2²⁰ = 694971372223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694972425799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117318694 + ... + 1117319315.

It is an arithmetic number, because the mean of its divisors is an integer number (174301764780).

Almost surely, 2^694972420799 is an apocalyptic number.

694972420799 is a deficient number, since it is larger than the sum of its proper divisors (2234638321).

694972420799 is a wasteful number, since it uses less digits than its factorization.

694972420799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234638320.

The product of its (nonzero) digits is 123451776, while the sum is 68.

The spelling of 694972420799 in words is "six hundred ninety-four billion, nine hundred seventy-two million, four hundred twenty thousand, seven hundred ninety-nine".