68955191 has 8 divisors (see below), whose sum is σ = 71452800. Its totient is φ = 66474720.

The previous prime is 68955167. The next prime is 68955197. The reversal of 68955191 is 19155986.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68955191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68955197) 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, 4205 + ... + 12473.

It is an arithmetic number, because the mean of its divisors is an integer number (8931600).

Almost surely, 2^68955191 is an apocalyptic number.

68955191 is a deficient number, since it is larger than the sum of its proper divisors (2497609).

68955191 is a wasteful number, since it uses less digits than its factorization.

68955191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569.

The product of its digits is 97200, while the sum is 44.

The square root of 68955191 is about 8303.9262400385. The cubic root of 68955191 is about 410.0677877208.

The spelling of 68955191 in words is "sixty-eight million, nine hundred fifty-five thousand, one hundred ninety-one".