2642311817 has 4 divisors (see below), whose sum is σ = 2781380880. Its totient is φ = 2503242756.

The previous prime is 2642311813. The next prime is 2642311823. The reversal of 2642311817 is 7181132462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2642311817 - 2² = 2642311813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642311813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69534503 + ... + 69534540.

It is an arithmetic number, because the mean of its divisors is an integer number (695345220).

Almost surely, 2^2642311817 is an apocalyptic number.

It is an amenable number.

2642311817 is a deficient number, since it is larger than the sum of its proper divisors (139069063).

2642311817 is a wasteful number, since it uses less digits than its factorization.

2642311817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139069062.

The product of its digits is 16128, while the sum is 35.

The square root of 2642311817 is about 51403.4222304313. The cubic root of 2642311817 is about 1382.4879533998.

The spelling of 2642311817 in words is "two billion, six hundred forty-two million, three hundred eleven thousand, eight hundred seventeen".