2561454744 has 32 divisors (see below), whose sum is σ = 6431134320. Its totient is φ = 850151936.

The previous prime is 2561454713. The next prime is 2561454757. The reversal of 2561454744 is 4474541652.

It is a super-2 number, since 2×2561454744² = 13122100811120211072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2561454696 and 2561454705.

It is a congruent number.

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, 223437 + ... + 234620.

Almost surely, 2^2561454744 is an apocalyptic number.

2561454744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2561454744 is an abundant number, since it is smaller than the sum of its proper divisors (3869679576).

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

2561454744 is a wasteful number, since it uses less digits than its factorization.

2561454744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458299 (or 458295 counting only the distinct ones).

The product of its digits is 537600, while the sum is 42.

The square root of 2561454744 is about 50610.8164723708. The cubic root of 2561454744 is about 1368.2398309040.

The spelling of 2561454744 in words is "two billion, five hundred sixty-one million, four hundred fifty-four thousand, seven hundred forty-four".