268497815039 has 4 divisors (see below), whose sum is σ = 268528269240. Its totient is φ = 268467360840.

The previous prime is 268497815021. The next prime is 268497815059. The reversal of 268497815039 is 930518794862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 268497815039 - 2¹⁶ = 268497749503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268497815059) 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, 15213872 + ... + 15231509.

It is an arithmetic number, because the mean of its divisors is an integer number (67132067310).

It is a 1-persistent number, because it is pandigital, but 2⋅268497815039 = 536995630078 is not.

Almost surely, 2^268497815039 is an apocalyptic number.

268497815039 is a deficient number, since it is larger than the sum of its proper divisors (30454201).

268497815039 is an equidigital number, since it uses as much as digits as its factorization.

268497815039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30454200.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 268497815039 in words is "two hundred sixty-eight billion, four hundred ninety-seven million, eight hundred fifteen thousand, thirty-nine".