2561448676 has 12 divisors (see below), whose sum is σ = 4577908608. Its totient is φ = 1253474792.

The previous prime is 2561448671. The next prime is 2561448677. The reversal of 2561448676 is 6768441652.

It is a super-2 number, since 2×2561448676² = 13122038639564305952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2561448671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6812176 + ... + 6812551.

It is an arithmetic number, because the mean of its divisors is an integer number (381492384).

Almost surely, 2^2561448676 is an apocalyptic number.

It is an amenable number.

2561448676 is a deficient number, since it is larger than the sum of its proper divisors (2016459932).

2561448676 is a wasteful number, since it uses less digits than its factorization.

2561448676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13624778 (or 13624776 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The square root of 2561448676 is about 50610.7565246757. The cubic root of 2561448676 is about 1368.2387504651.

The spelling of 2561448676 in words is "two billion, five hundred sixty-one million, four hundred forty-eight thousand, six hundred seventy-six".