68911869 has 8 divisors (see below), whose sum is σ = 98950432. Its totient is φ = 42407280.

The previous prime is 68911867. The next prime is 68911873. The reversal of 68911869 is 96811986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68911869 - 2¹ = 68911867 is a prime.

It is a super-2 number, since 2×68911869² = 9497691378146322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68911867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883447 + ... + 883524.

It is an arithmetic number, because the mean of its divisors is an integer number (12368804).

Almost surely, 2^68911869 is an apocalyptic number.

It is an amenable number.

68911869 is a deficient number, since it is larger than the sum of its proper divisors (30038563).

68911869 is a wasteful number, since it uses less digits than its factorization.

68911869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766987.

The product of its digits is 186624, while the sum is 48.

The square root of 68911869 is about 8301.3173051028. The cubic root of 68911869 is about 409.9818929144.

The spelling of 68911869 in words is "sixty-eight million, nine hundred eleven thousand, eight hundred sixty-nine".