261010568 has 32 divisors (see below), whose sum is σ = 602333760. Its totient is φ = 103256640.

The previous prime is 261010517. The next prime is 261010579. The reversal of 261010568 is 865010162.

It is a happy number.

261010568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 261010568.

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, 178538 + ... + 179993.

It is an arithmetic number, because the mean of its divisors is an integer number (18822930).

Almost surely, 2^261010568 is an apocalyptic number.

261010568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

261010568 is an abundant number, since it is smaller than the sum of its proper divisors (341323192).

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

261010568 is a wasteful number, since it uses less digits than its factorization.

261010568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358557 (or 358553 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 261010568 is about 16155.8214894817. The cubic root of 261010568 is about 639.0762780964.

The spelling of 261010568 in words is "two hundred sixty-one million, ten thousand, five hundred sixty-eight".