268472469517 has 4 divisors (see below), whose sum is σ = 306825679456. Its totient is φ = 230119259580.

The previous prime is 268472469479. The next prime is 268472469539. The reversal of 268472469517 is 715964274862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 715964274862 = 2 ⋅357982137431.

It is not a de Polignac number, because 268472469517 - 2⁷ = 268472469389 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 (268472499517) 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, 19176604959 + ... + 19176604972.

It is an arithmetic number, because the mean of its divisors is an integer number (76706419864).

Almost surely, 2^268472469517 is an apocalyptic number.

It is an amenable number.

268472469517 is a deficient number, since it is larger than the sum of its proper divisors (38353209939).

268472469517 is an equidigital number, since it uses as much as digits as its factorization.

268472469517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38353209938.

The product of its digits is 40642560, while the sum is 61.

The spelling of 268472469517 in words is "two hundred sixty-eight billion, four hundred seventy-two million, four hundred sixty-nine thousand, five hundred seventeen".