268487312705 has 32 divisors (see below), whose sum is σ = 357530664960. Its totient is φ = 192731175360.

The previous prime is 268487312671. The next prime is 268487312801. The reversal of 268487312705 is 507213784862.

It is a de Polignac number, because none of the positive numbers 2^k-268487312705 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831449 + ... + 1108278.

It is an arithmetic number, because the mean of its divisors is an integer number (11172833280).

Almost surely, 2^268487312705 is an apocalyptic number.

It is an amenable number.

268487312705 is a deficient number, since it is larger than the sum of its proper divisors (89043352255).

268487312705 is a wasteful number, since it uses less digits than its factorization.

268487312705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939829.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 268487312705 in words is "two hundred sixty-eight billion, four hundred eighty-seven million, three hundred twelve thousand, seven hundred five".