464252812321 has 3 divisors (see below), whose sum is σ = 464253493683. Its totient is φ = 464252130960.

The previous prime is 464252812277. The next prime is 464252812327. The reversal of 464252812321 is 123218252464.

The square root of 464252812321 is 681361.

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

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 can be written as a sum of positive squares in only one way, i.e., 251362852321 + 212889960000 = 501361^2 + 461400^2 .

It is not a de Polignac number, because 464252812321 - 2⁷ = 464252812193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464252812327) 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, 340681 + ... + 1022041.

It is an arithmetic number, because the mean of its divisors is an integer number (154751164561).

Almost surely, 2^464252812321 is an apocalyptic number.

464252812321 is the 681361-st square number.

464252812321 is the 340681-st centered octagonal number.

It is an amenable number.

464252812321 is a deficient number, since it is larger than the sum of its proper divisors (681362).

464252812321 is an frugal number, since it uses more digits than its factorization.

464252812321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362722 (or 681361 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The spelling of 464252812321 in words is "four hundred sixty-four billion, two hundred fifty-two million, eight hundred twelve thousand, three hundred twenty-one".