768121351 has 2 divisors, whose sum is σ = 768121352. Its totient is φ = 768121350.

The previous prime is 768121349. The next prime is 768121391. The reversal of 768121351 is 153121867.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 768121351 - 2¹ = 768121349 is a prime.

Together with 768121349, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768121391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384060675 + 384060676.

It is an arithmetic number, because the mean of its divisors is an integer number (384060676).

Almost surely, 2^768121351 is an apocalyptic number.

768121351 is a deficient number, since it is larger than the sum of its proper divisors (1).

768121351 is an equidigital number, since it uses as much as digits as its factorization.

768121351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 768121351 is about 27715.0022731372. The cubic root of 768121351 is about 915.8196249115.

The spelling of 768121351 in words is "seven hundred sixty-eight million, one hundred twenty-one thousand, three hundred fifty-one".