2563967284 has 6 divisors (see below), whose sum is σ = 4486942754. Its totient is φ = 1281983640.

The previous prime is 2563967261. The next prime is 2563967303. The reversal of 2563967284 is 4827693652.

It can be written as a sum of positive squares in only one way, i.e., 2498000400 + 65966884 = 49980^2 + 8122^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320495907 + ... + 320495914.

Almost surely, 2^2563967284 is an apocalyptic number.

It is an amenable number.

2563967284 is a deficient number, since it is larger than the sum of its proper divisors (1922975470).

2563967284 is a wasteful number, since it uses less digits than its factorization.

2563967284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640991825 (or 640991823 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 2563967284 is about 50635.6325525810. The cubic root of 2563967284 is about 1368.6870551345.

The spelling of 2563967284 in words is "two billion, five hundred sixty-three million, nine hundred sixty-seven thousand, two hundred eighty-four".