268915780575 has 48 divisors (see below), whose sum is σ = 532008900640. Its totient is φ = 132389303040.

The previous prime is 268915780547. The next prime is 268915780667. The reversal of 268915780575 is 575087519862.

268915780575 is a `hidden beast` number, since 2 + 6 + 8 + 9 + 1 + 57 + 8 + 0 + 575 = 666.

It is not a de Polignac number, because 268915780575 - 2⁸ = 268915780319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15314062 + ... + 15331611.

Almost surely, 2^268915780575 is an apocalyptic number.

268915780575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

268915780575 is a deficient number, since it is larger than the sum of its proper divisors (263093120065).

268915780575 is a wasteful number, since it uses less digits than its factorization.

268915780575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30645705 (or 30645694 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 63.

The spelling of 268915780575 in words is "two hundred sixty-eight billion, nine hundred fifteen million, seven hundred eighty thousand, five hundred seventy-five".