268191423 has 6 divisors (see below), whose sum is σ = 387387624. Its totient is φ = 178794276.

The previous prime is 268191421. The next prime is 268191433. The reversal of 268191423 is 324191862.

It is not a de Polignac number, because 268191423 - 2¹ = 268191421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268191421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14899515 + ... + 14899532.

It is an arithmetic number, because the mean of its divisors is an integer number (64564604).

Almost surely, 2^268191423 is an apocalyptic number.

268191423 is a deficient number, since it is larger than the sum of its proper divisors (119196201).

268191423 is a wasteful number, since it uses less digits than its factorization.

268191423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29799053 (or 29799050 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 268191423 is about 16376.5510105150. The cubic root of 268191423 is about 644.8840390054.

The spelling of 268191423 in words is "two hundred sixty-eight million, one hundred ninety-one thousand, four hundred twenty-three".