246850979281 has 3 divisors (see below), whose sum is σ = 246851476123. Its totient is φ = 246850482440.

The previous prime is 246850979273. The next prime is 246850979303. The reversal of 246850979281 is 182979058642.

The square root of 246850979281 is 496841.

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., 244422460881 + 2428518400 = 494391^2 + 49280^2 .

It is not a de Polignac number, because 246850979281 - 2³ = 246850979273 is a prime.

It is a super-2 number, since 2×246850979281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (246850979261) 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, 248421 + ... + 745261.

Almost surely, 2^246850979281 is an apocalyptic number.

246850979281 is the 496841-st square number.

246850979281 is the 248421-st centered octagonal number.

It is an amenable number.

246850979281 is a deficient number, since it is larger than the sum of its proper divisors (496842).

246850979281 is an frugal number, since it uses more digits than its factorization.

246850979281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993682 (or 496841 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 246850979281 in words is "two hundred forty-six billion, eight hundred fifty million, nine hundred seventy-nine thousand, two hundred eighty-one".