268177000491 has 24 divisors (see below), whose sum is σ = 396907396704. Its totient is φ = 174383341440.

The previous prime is 268177000471. The next prime is 268177000613. The reversal of 268177000491 is 194000771862.

It is a happy number.

It is not a de Polignac number, because 268177000491 - 2⁵ = 268177000459 is a prime.

It is a super-3 number, since 3×268177000491³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (268177000471) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1539850 + ... + 1705136.

It is an arithmetic number, because the mean of its divisors is an integer number (16537808196).

Almost surely, 2^268177000491 is an apocalyptic number.

268177000491 is a deficient number, since it is larger than the sum of its proper divisors (128730396213).

268177000491 is a wasteful number, since it uses less digits than its factorization.

268177000491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169731 (or 169728 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 268177000491 in words is "two hundred sixty-eight billion, one hundred seventy-seven million, four hundred ninety-one", and thus it is an aban number.