68298511 has 4 divisors (see below), whose sum is σ = 69066000. Its totient is φ = 67531024.

The previous prime is 68298493. The next prime is 68298539. The reversal of 68298511 is 11589286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68298511 - 2⁵ = 68298479 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 (68298541) 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 3 ways as a sum of consecutive naturals, for example, 383611 + ... + 383788.

It is an arithmetic number, because the mean of its divisors is an integer number (17266500).

Almost surely, 2^68298511 is an apocalyptic number.

68298511 is a deficient number, since it is larger than the sum of its proper divisors (767489).

68298511 is an equidigital number, since it uses as much as digits as its factorization.

68298511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767488.

The product of its digits is 34560, while the sum is 40.

The square root of 68298511 is about 8264.2913186794. The cubic root of 68298511 is about 408.7619025360.

The spelling of 68298511 in words is "sixty-eight million, two hundred ninety-eight thousand, five hundred eleven".