2561405462 has 32 divisors (see below), whose sum is σ = 4796907264. Its totient is φ = 996544800.

The previous prime is 2561405459. The next prime is 2561405479. The reversal of 2561405462 is 2645041652.

2561405462 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101537 + ... + 124227.

It is an arithmetic number, because the mean of its divisors is an integer number (149903352).

Almost surely, 2^2561405462 is an apocalyptic number.

2561405462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2561405462 is a deficient number, since it is larger than the sum of its proper divisors (2235501802).

2561405462 is a wasteful number, since it uses less digits than its factorization.

2561405462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23444.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 2561405462 is about 50610.3295978202. The cubic root of 2561405462 is about 1368.2310559389.

The spelling of 2561405462 in words is "two billion, five hundred sixty-one million, four hundred five thousand, four hundred sixty-two".