2372473721 has 4 divisors (see below), whose sum is σ = 2412685200. Its totient is φ = 2332262244.

The previous prime is 2372473717. The next prime is 2372473729. The reversal of 2372473721 is 1273742732.

2372473721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2372473721 - 2² = 2372473717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2372473729) 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, 20105651 + ... + 20105768.

It is an arithmetic number, because the mean of its divisors is an integer number (603171300).

Almost surely, 2^2372473721 is an apocalyptic number.

It is an amenable number.

2372473721 is a deficient number, since it is larger than the sum of its proper divisors (40211479).

2372473721 is an equidigital number, since it uses as much as digits as its factorization.

2372473721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40211478.

The product of its digits is 98784, while the sum is 38.

The square root of 2372473721 is about 48708.0457522163. The cubic root of 2372473721 is about 1333.7275949832.

The spelling of 2372473721 in words is "two billion, three hundred seventy-two million, four hundred seventy-three thousand, seven hundred twenty-one".