693581253121 has 4 divisors (see below), whose sum is σ = 693599804352. Its totient is φ = 693562701892.

The previous prime is 693581253119. The next prime is 693581253143. The reversal of 693581253121 is 121352185396.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 693581253121 - 2¹ = 693581253119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693581253721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9219421 + ... + 9294346.

It is an arithmetic number, because the mean of its divisors is an integer number (173399951088).

Almost surely, 2^693581253121 is an apocalyptic number.

It is an amenable number.

693581253121 is a deficient number, since it is larger than the sum of its proper divisors (18551231).

693581253121 is a wasteful number, since it uses less digits than its factorization.

693581253121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18551230.

The product of its digits is 388800, while the sum is 46.

The spelling of 693581253121 in words is "six hundred ninety-three billion, five hundred eighty-one million, two hundred fifty-three thousand, one hundred twenty-one".