993799997399 has 24 divisors (see below), whose sum is σ = 1149988224000. Its totient is φ = 855802339920.

The previous prime is 993799997381. The next prime is 993799997413.

993799997399 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 993799997399 - 2¹⁶ = 993799931863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993799997329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24254672 + ... + 24295610.

It is an arithmetic number, because the mean of its divisors is an integer number (47916176000).

Almost surely, 2^993799997399 is an apocalyptic number.

993799997399 is a deficient number, since it is larger than the sum of its proper divisors (156188226601).

993799997399 is a wasteful number, since it uses less digits than its factorization.

993799997399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51539 (or 51528 counting only the distinct ones).

The product of its digits is 18983603961, while the sum is 92.

The spelling of 993799997399 in words is "nine hundred ninety-three billion, seven hundred ninety-nine million, nine hundred ninety-seven thousand, three hundred ninety-nine".