260728994788 has 12 divisors (see below), whose sum is σ = 464884717500. Its totient is φ = 127904789792.

The previous prime is 260728994783. The next prime is 260728994803. The reversal of 260728994788 is 887499827062.

It can be written as a sum of positive squares in 2 ways, for example, as 213362695744 + 47366299044 = 461912^2 + 217638^2 .

It is not an unprimeable number, because it can be changed into a prime (260728994783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614926663 + ... + 614927086.

It is an arithmetic number, because the mean of its divisors is an integer number (38740393125).

Almost surely, 2^260728994788 is an apocalyptic number.

It is an amenable number.

260728994788 is a deficient number, since it is larger than the sum of its proper divisors (204155722712).

260728994788 is a wasteful number, since it uses less digits than its factorization.

260728994788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229853806 (or 1229853804 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 70.

The spelling of 260728994788 in words is "two hundred sixty billion, seven hundred twenty-eight million, nine hundred ninety-four thousand, seven hundred eighty-eight".