993331722253 has 8 divisors (see below), whose sum is σ = 1069754312088. Its totient is φ = 916910912064.

The previous prime is 993331722179. The next prime is 993331722269. The reversal of 993331722253 is 352227133399.

It can be written as a sum of positive squares in 4 ways, for example, as 46482066409 + 946849655844 = 215597^2 + 973062^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 993331722253 - 2⁹ = 993331721741 is a prime.

It is a super-2 number, since 2×993331722253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 993331722197 and 993331722206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993331722553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855051 + ... + 1648567.

It is an arithmetic number, because the mean of its divisors is an integer number (133719289011).

Almost surely, 2^993331722253 is an apocalyptic number.

It is an amenable number.

993331722253 is a deficient number, since it is larger than the sum of its proper divisors (76422589835).

993331722253 is a wasteful number, since it uses less digits than its factorization.

993331722253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889823.

The product of its digits is 1837080, while the sum is 49.

The spelling of 993331722253 in words is "nine hundred ninety-three billion, three hundred thirty-one million, seven hundred twenty-two thousand, two hundred fifty-three".