2564631294 has 16 divisors (see below), whose sum is σ = 5131002240. Its totient is φ = 854587160.

The previous prime is 2564631287. The next prime is 2564631313. The reversal of 2564631294 is 4921364652.

It is a super-2 number, since 2×2564631294² = 13154667348328228872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 52914 + ... + 89045.

It is an arithmetic number, because the mean of its divisors is an integer number (320687640).

Almost surely, 2^2564631294 is an apocalyptic number.

2564631294 is an abundant number, since it is smaller than the sum of its proper divisors (2566370946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564631294 is a wasteful number, since it uses less digits than its factorization.

2564631294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144975.

The product of its digits is 311040, while the sum is 42.

The square root of 2564631294 is about 50642.1888744948. The cubic root of 2564631294 is about 1368.8051980158.

The spelling of 2564631294 in words is "two billion, five hundred sixty-four million, six hundred thirty-one thousand, two hundred ninety-four".