68911151 has 8 divisors (see below), whose sum is σ = 73087584. Its totient is φ = 64833120.

The previous prime is 68911133. The next prime is 68911169. The reversal of 68911151 is 15111986.

It is an interprime number because it is at equal distance from previous prime (68911133) and next prime (68911169).

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 68911151 - 2²⁶ = 1802287 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 (68911111) 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, 23156 + ... + 25961.

It is an arithmetic number, because the mean of its divisors is an integer number (9135948).

Almost surely, 2^68911151 is an apocalyptic number.

68911151 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

68911151 is a deficient number, since it is larger than the sum of its proper divisors (4176433).

68911151 is a wasteful number, since it uses less digits than its factorization.

68911151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49201.

The product of its digits is 2160, while the sum is 32.

The square root of 68911151 is about 8301.2740588418. The cubic root of 68911151 is about 409.9804690280.

The spelling of 68911151 in words is "sixty-eight million, nine hundred eleven thousand, one hundred fifty-one".