693375621121 has 4 divisors (see below), whose sum is σ = 704742434644. Its totient is φ = 682008807600.

The previous prime is 693375621031. The next prime is 693375621167. The reversal of 693375621121 is 121126573396.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94510130625 + 598865490496 = 307425^2 + 773864^2 .

It is a cyclic number.

It is not a de Polignac number, because 693375621121 - 2¹¹ = 693375619073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693375625121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683406670 + ... + 5683406791.

It is an arithmetic number, because the mean of its divisors is an integer number (176185608661).

Almost surely, 2^693375621121 is an apocalyptic number.

693375621121 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

693375621121 is a deficient number, since it is larger than the sum of its proper divisors (11366813523).

693375621121 is a wasteful number, since it uses less digits than its factorization.

693375621121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11366813522.

The product of its digits is 408240, while the sum is 46.

The spelling of 693375621121 in words is "six hundred ninety-three billion, three hundred seventy-five million, six hundred twenty-one thousand, one hundred twenty-one".