2862778231 has 4 divisors (see below), whose sum is σ = 2864697192. Its totient is φ = 2860859272.

The previous prime is 2862778229. The next prime is 2862778271. The reversal of 2862778231 is 1328772682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2862778231 - 2¹ = 2862778229 is a prime.

It is a super-2 number, since 2×2862778231² = 16390998399774978722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2862778271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957241 + ... + 960226.

It is an arithmetic number, because the mean of its divisors is an integer number (716174298).

Almost surely, 2^2862778231 is an apocalyptic number.

2862778231 is a deficient number, since it is larger than the sum of its proper divisors (1918961).

2862778231 is a wasteful number, since it uses less digits than its factorization.

2862778231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918960.

The product of its digits is 451584, while the sum is 46.

The square root of 2862778231 is about 53504.9365105688. The cubic root of 2862778231 is about 1419.9157245164.

The spelling of 2862778231 in words is "two billion, eight hundred sixty-two million, seven hundred seventy-eight thousand, two hundred thirty-one".