2373963521 has 8 divisors (see below), whose sum is σ = 2518131240. Its totient is φ = 2230298368.

The previous prime is 2373963517. The next prime is 2373963541. The reversal of 2373963521 is 1253693732.

It can be written as a sum of positive squares in 4 ways, for example, as 513249025 + 1860714496 = 22655^2 + 43136^2 .

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 2373963521 - 2² = 2373963517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2373963541) 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, 115886 + ... + 134823.

It is an arithmetic number, because the mean of its divisors is an integer number (314766405).

Almost surely, 2^2373963521 is an apocalyptic number.

It is an amenable number.

2373963521 is a deficient number, since it is larger than the sum of its proper divisors (144167719).

2373963521 is a wasteful number, since it uses less digits than its factorization.

2373963521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251283.

The product of its digits is 204120, while the sum is 41.

The square root of 2373963521 is about 48723.3365134203. The cubic root of 2373963521 is about 1334.0067089431.

The spelling of 2373963521 in words is "two billion, three hundred seventy-three million, nine hundred sixty-three thousand, five hundred twenty-one".