286611400321 has 3 divisors (see below), whose sum is σ = 286611935683. Its totient is φ = 286610864960.

The previous prime is 286611400301. The next prime is 286611400349. The reversal of 286611400321 is 123004116682.

The square root of 286611400321 is 535361.

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., 12580089921 + 274031310400 = 112161^2 + 523480^2 .

It is not a de Polignac number, because 286611400321 - 2⁵ = 286611400289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286611400301) 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, 267681 + ... + 803041.

Almost surely, 2^286611400321 is an apocalyptic number.

286611400321 is the 535361-st square number.

286611400321 is the 267681-st centered octagonal number.

It is an amenable number.

286611400321 is a deficient number, since it is larger than the sum of its proper divisors (535362).

286611400321 is an frugal number, since it uses more digits than its factorization.

286611400321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070722 (or 535361 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 286611400321 in words is "two hundred eighty-six billion, six hundred eleven million, four hundred thousand, three hundred twenty-one".