993697796399 has 16 divisors (see below), whose sum is σ = 1304101006080. Its totient is φ = 733556813760.

The previous prime is 993697796387. The next prime is 993697796407.

993697796399 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 993697796399 - 2⁴ = 993697796383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 993697796399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993697796309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339608174 + ... + 339611099.

It is an arithmetic number, because the mean of its divisors is an integer number (81506312880).

Almost surely, 2^993697796399 is an apocalyptic number.

993697796399 is a deficient number, since it is larger than the sum of its proper divisors (310403209681).

993697796399 is a wasteful number, since it uses less digits than its factorization.

993697796399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679219310.

The product of its digits is 8437157316, while the sum is 86.

The spelling of 993697796399 in words is "nine hundred ninety-three billion, six hundred ninety-seven million, seven hundred ninety-six thousand, three hundred ninety-nine".