260728135648 has 48 divisors (see below), whose sum is σ = 515921978880. Its totient is φ = 129700771200.

The previous prime is 260728135621. The next prime is 260728135663. The reversal of 260728135648 is 846531827062.

It is a junction number, because it is equal to n+sod(n) for n = 260728135595 and 260728135604.

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, 27617713 + ... + 27627151.

It is an arithmetic number, because the mean of its divisors is an integer number (10748374560).

Almost surely, 2^260728135648 is an apocalyptic number.

It is an amenable number.

260728135648 is a deficient number, since it is larger than the sum of its proper divisors (255193843232).

260728135648 is a wasteful number, since it uses less digits than its factorization.

260728135648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13751 (or 13743 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 260728135648 in words is "two hundred sixty billion, seven hundred twenty-eight million, one hundred thirty-five thousand, six hundred forty-eight".