68563019 has 16 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 57672384.

The previous prime is 68563013. The next prime is 68563021. The reversal of 68563019 is 91036586.

It is not a de Polignac number, because 68563019 - 2⁴ = 68563003 is a prime.

It is a super-2 number, since 2×68563019² = 9401775148788722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68563013) 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, 103712 + ... + 104370.

It is an arithmetic number, because the mean of its divisors is an integer number (4989600).

Almost surely, 2^68563019 is an apocalyptic number.

68563019 is a deficient number, since it is larger than the sum of its proper divisors (11270581).

68563019 is a wasteful number, since it uses less digits than its factorization.

68563019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 68563019 is about 8280.2789204229. The cubic root of 68563019 is about 409.2889101956.

The spelling of 68563019 in words is "sixty-eight million, five hundred sixty-three thousand, nineteen".