993044004405 has 16 divisors (see below), whose sum is σ = 1589052972480. Its totient is φ = 529562613888.

The previous prime is 993044004397. The next prime is 993044004419. The reversal of 993044004405 is 504400440399.

It is not a de Polignac number, because 993044004405 - 2³ = 993044004397 is a prime.

It is a super-2 number, since 2×993044004405² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3668395 + ... + 3929784.

It is an arithmetic number, because the mean of its divisors is an integer number (99315810780).

Almost surely, 2^993044004405 is an apocalyptic number.

It is an amenable number.

993044004405 is a deficient number, since it is larger than the sum of its proper divisors (596008968075).

993044004405 is a wasteful number, since it uses less digits than its factorization.

993044004405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606900.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 993044004405 in words is "nine hundred ninety-three billion, forty-four million, four thousand, four hundred five".