2561464146 has 16 divisors (see below), whose sum is σ = 5123440224. Its totient is φ = 853736064.

The previous prime is 2561464117. The next prime is 2561464153. The reversal of 2561464146 is 6414641652.

2561464146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2561464146² = 13122197142487018632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82885 + ... + 109511.

It is an arithmetic number, because the mean of its divisors is an integer number (320215014).

Almost surely, 2^2561464146 is an apocalyptic number.

2561464146 is an abundant number, since it is smaller than the sum of its proper divisors (2561976078).

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

2561464146 is a wasteful number, since it uses less digits than its factorization.

2561464146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42665.

The product of its digits is 138240, while the sum is 39.

The square root of 2561464146 is about 50610.9093575684. The cubic root of 2561464146 is about 1368.2415049755.

The spelling of 2561464146 in words is "two billion, five hundred sixty-one million, four hundred sixty-four thousand, one hundred forty-six".