2791563063 has 4 divisors (see below), whose sum is σ = 3722084088. Its totient is φ = 1861042040.

The previous prime is 2791563007. The next prime is 2791563079. The reversal of 2791563063 is 3603651972.

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 2791563063 - 2¹⁷ = 2791431991 is a prime.

It is a super-4 number, since 4×2791563063⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791563263) 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, 465260508 + ... + 465260513.

It is an arithmetic number, because the mean of its divisors is an integer number (930521022).

Almost surely, 2^2791563063 is an apocalyptic number.

2791563063 is a deficient number, since it is larger than the sum of its proper divisors (930521025).

2791563063 is an equidigital number, since it uses as much as digits as its factorization.

2791563063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930521024.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 2791563063 is about 52835.2445153801. The cubic root of 2791563063 is about 1408.0426646354.

The spelling of 2791563063 in words is "two billion, seven hundred ninety-one million, five hundred sixty-three thousand, sixty-three".