2864531311 has 4 divisors (see below), whose sum is σ = 2866945752. Its totient is φ = 2862116872.

The previous prime is 2864531309. The next prime is 2864531339. The reversal of 2864531311 is 1131354682.

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 2864531311 - 2¹ = 2864531309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864531381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205440 + ... + 1207813.

It is an arithmetic number, because the mean of its divisors is an integer number (716736438).

Almost surely, 2^2864531311 is an apocalyptic number.

2864531311 is a deficient number, since it is larger than the sum of its proper divisors (2414441).

2864531311 is a wasteful number, since it uses less digits than its factorization.

2864531311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414440.

The product of its digits is 17280, while the sum is 34.

The square root of 2864531311 is about 53521.3164169193. The cubic root of 2864531311 is about 1420.2055033863.

Adding to 2864531311 its reverse (1131354682), we get a palindrome (3995885993).

The spelling of 2864531311 in words is "two billion, eight hundred sixty-four million, five hundred thirty-one thousand, three hundred eleven".