2257923964321 has 3 divisors (see below), whose sum is σ = 2257925466961. Its totient is φ = 2257922461682.

The previous prime is 2257923964271. The next prime is 2257923964343. The reversal of 2257923964321 is 1234693297522.

The square root of 2257923964321 is 1502639.

It is a perfect power (a square), and thus also a powerful number.

2257923964321 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 brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2257923964321 - 2⁹ = 2257923963809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257923962321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 751320 + ... + 2253958.

Almost surely, 2^{2257923964321} is an apocalyptic number.

2257923964321 is the 1502639-th square number.

2257923964321 is the 751320-th centered octagonal number.

It is an amenable number.

2257923964321 is a deficient number, since it is larger than the sum of its proper divisors (1502640).

2257923964321 is an frugal number, since it uses more digits than its factorization.

2257923964321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005278 (or 1502639 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 55.

The spelling of 2257923964321 in words is "two trillion, two hundred fifty-seven billion, nine hundred twenty-three million, nine hundred sixty-four thousand, three hundred twenty-one".