68506669 has 8 divisors (see below), whose sum is σ = 85411008. Its totient is φ = 53381760.

The previous prime is 68506663. The next prime is 68506681. The reversal of 68506669 is 96660586.

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

It is a cyclic number.

It is not a de Polignac number, because 68506669 - 2³ = 68506661 is a prime.

It is a super-2 number, since 2×68506669² = 9386327394951122, 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 (68506661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444772 + ... + 444925.

It is an arithmetic number, because the mean of its divisors is an integer number (10676376).

Almost surely, 2^68506669 is an apocalyptic number.

It is an amenable number.

68506669 is a deficient number, since it is larger than the sum of its proper divisors (16904339).

68506669 is a wasteful number, since it uses less digits than its factorization.

68506669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889715.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 68506669 is about 8276.8755578419. The cubic root of 68506669 is about 409.1767518158.

The spelling of 68506669 in words is "sixty-eight million, five hundred six thousand, six hundred sixty-nine".