2560467721 has 8 divisors (see below), whose sum is σ = 3080262080. Its totient is φ = 2079176688.

The previous prime is 2560467713. The next prime is 2560467727. The reversal of 2560467721 is 1277640652.

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

It is not a de Polignac number, because 2560467721 - 2³ = 2560467713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2560467727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9625686 + ... + 9625951.

It is an arithmetic number, because the mean of its divisors is an integer number (385032760).

Almost surely, 2^2560467721 is an apocalyptic number.

It is an amenable number.

2560467721 is a deficient number, since it is larger than the sum of its proper divisors (519794359).

2560467721 is a wasteful number, since it uses less digits than its factorization.

2560467721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251663.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 2560467721 is about 50601.0644255632. The cubic root of 2560467721 is about 1368.0640638993.

The spelling of 2560467721 in words is "two billion, five hundred sixty million, four hundred sixty-seven thousand, seven hundred twenty-one".