268108742499 has 16 divisors (see below), whose sum is σ = 385209082272. Its totient is φ = 164890384128.

The previous prime is 268108742497. The next prime is 268108742549. The reversal of 268108742499 is 994247801862.

It is not a de Polignac number, because 268108742499 - 2¹ = 268108742497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268108742491) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2009784 + ... + 2139029.

It is an arithmetic number, because the mean of its divisors is an integer number (24075567642).

Almost surely, 2^268108742499 is an apocalyptic number.

268108742499 is a deficient number, since it is larger than the sum of its proper divisors (117100339773).

268108742499 is a wasteful number, since it uses less digits than its factorization.

268108742499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150486.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 268108742499 in words is "two hundred sixty-eight billion, one hundred eight million, seven hundred forty-two thousand, four hundred ninety-nine".