373721325721 has 16 divisors (see below), whose sum is σ = 395834270400. Its totient is φ = 351854480448.

The previous prime is 373721325701. The next prime is 373721325737. The reversal of 373721325721 is 127523127373.

It is a cyclic number.

It is not a de Polignac number, because 373721325721 - 2⁵ = 373721325689 is a prime.

It is a super-3 number, since 3×373721325721³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (373721325701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8059615 + ... + 8105851.

It is an arithmetic number, because the mean of its divisors is an integer number (24739641900).

Almost surely, 2^373721325721 is an apocalyptic number.

It is an amenable number.

373721325721 is a deficient number, since it is larger than the sum of its proper divisors (22112944679).

373721325721 is a wasteful number, since it uses less digits than its factorization.

373721325721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48888.

The product of its digits is 370440, while the sum is 43.

The spelling of 373721325721 in words is "three hundred seventy-three billion, seven hundred twenty-one million, three hundred twenty-five thousand, seven hundred twenty-one".