68819601 has 4 divisors (see below), whose sum is σ = 91759472. Its totient is φ = 45879732.

The previous prime is 68819591. The next prime is 68819603. The reversal of 68819601 is 10691886.

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.

It is not a de Polignac number, because 68819601 - 2¹⁰ = 68818577 is a prime.

It is a super-2 number, since 2×68819601² = 9472274963598402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68819601.

It is not an unprimeable number, because it can be changed into a prime (68819603) 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, 11469931 + ... + 11469936.

It is an arithmetic number, because the mean of its divisors is an integer number (22939868).

Almost surely, 2^68819601 is an apocalyptic number.

It is an amenable number.

68819601 is a deficient number, since it is larger than the sum of its proper divisors (22939871).

68819601 is a wasteful number, since it uses less digits than its factorization.

68819601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22939870.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 68819601 is about 8295.7580123820. The cubic root of 68819601 is about 409.7988325046.

The spelling of 68819601 in words is "sixty-eight million, eight hundred nineteen thousand, six hundred one".