2561894614 has 8 divisors (see below), whose sum is σ = 3844555848. Its totient is φ = 1280376000.

The previous prime is 2561894581. The next prime is 2561894623. The reversal of 2561894614 is 4164981652.

It is a happy number.

2561894614 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280027 + ... + 289030.

It is an arithmetic number, because the mean of its divisors is an integer number (480569481).

Almost surely, 2^2561894614 is an apocalyptic number.

2561894614 is a deficient number, since it is larger than the sum of its proper divisors (1282661234).

2561894614 is a wasteful number, since it uses less digits than its factorization.

2561894614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571310.

The product of its digits is 414720, while the sum is 46.

The square root of 2561894614 is about 50615.1618983877. The cubic root of 2561894614 is about 1368.3181474944.

The spelling of 2561894614 in words is "two billion, five hundred sixty-one million, eight hundred ninety-four thousand, six hundred fourteen".