68264019 has 16 divisors (see below), whose sum is σ = 101488800. Its totient is φ = 45348768.

The previous prime is 68264011. The next prime is 68264029. The reversal of 68264019 is 91046286.

68264019 is a `hidden beast` number, since 6 + 8 + 2 + 640 + 1 + 9 = 666.

It is not a de Polignac number, because 68264019 - 2³ = 68264011 is a prime.

It is a super-2 number, since 2×68264019² = 9319952580064722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68264011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597 + ... + 12225.

It is an arithmetic number, because the mean of its divisors is an integer number (6343050).

Almost surely, 2^68264019 is an apocalyptic number.

68264019 is a deficient number, since it is larger than the sum of its proper divisors (33224781).

68264019 is a wasteful number, since it uses less digits than its factorization.

68264019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8931 (or 8925 counting only the distinct ones).

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

The square root of 68264019 is about 8262.2042458414. The cubic root of 68264019 is about 408.6930801980.

The spelling of 68264019 in words is "sixty-eight million, two hundred sixty-four thousand, nineteen".