2781290963 has 4 divisors (see below), whose sum is σ = 3034135608. Its totient is φ = 2528446320.

The previous prime is 2781290959. The next prime is 2781290971. The reversal of 2781290963 is 3690921872.

It is a happy number.

2781290963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2781290963 - 2² = 2781290959 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2781295963) 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, 126422306 + ... + 126422327.

It is an arithmetic number, because the mean of its divisors is an integer number (758533902).

Almost surely, 2^2781290963 is an apocalyptic number.

2781290963 is a deficient number, since it is larger than the sum of its proper divisors (252844645).

2781290963 is a wasteful number, since it uses less digits than its factorization.

2781290963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252844644.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 2781290963 is about 52737.9461393786. The cubic root of 2781290963 is about 1406.3134862058.

The spelling of 2781290963 in words is "two billion, seven hundred eighty-one million, two hundred ninety thousand, nine hundred sixty-three".