260547778 has 8 divisors (see below), whose sum is σ = 390893580. Its totient is φ = 130249920.

The previous prime is 260547757. The next prime is 260547811. The reversal of 260547778 is 877745062.

260547778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 254945089 + 5602689 = 15967^2 + 2367^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8838 + ... + 24478.

Almost surely, 2^260547778 is an apocalyptic number.

260547778 is a deficient number, since it is larger than the sum of its proper divisors (130345802).

260547778 is a wasteful number, since it uses less digits than its factorization.

260547778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 260547778 is about 16141.4924340967. The cubic root of 260547778 is about 638.6983456556.

The spelling of 260547778 in words is "two hundred sixty million, five hundred forty-seven thousand, seven hundred seventy-eight".