68776151 has 2 divisors, whose sum is σ = 68776152. Its totient is φ = 68776150.

The previous prime is 68776133. The next prime is 68776153. The reversal of 68776151 is 15167786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68776151 - 2²⁶ = 1667287 is a prime.

Together with 68776153, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68776099 and 68776108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68776153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34388075 + 34388076.

It is an arithmetic number, because the mean of its divisors is an integer number (34388076).

Almost surely, 2^68776151 is an apocalyptic number.

68776151 is a deficient number, since it is larger than the sum of its proper divisors (1).

68776151 is an equidigital number, since it uses as much as digits as its factorization.

68776151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 41.

The square root of 68776151 is about 8293.1387905907. The cubic root of 68776151 is about 409.7125707051.

The spelling of 68776151 in words is "sixty-eight million, seven hundred seventy-six thousand, one hundred fifty-one".