68411491 has 8 divisors (see below), whose sum is σ = 69117440. Its totient is φ = 67708872.

The previous prime is 68411479. The next prime is 68411501. The reversal of 68411491 is 19411486.

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 68411491 - 2⁵ = 68411459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68411401) 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, 63826 + ... + 64888.

It is an arithmetic number, because the mean of its divisors is an integer number (8639680).

Almost surely, 2^68411491 is an apocalyptic number.

68411491 is a deficient number, since it is larger than the sum of its proper divisors (705949).

68411491 is a wasteful number, since it uses less digits than its factorization.

68411491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665.

The product of its digits is 6912, while the sum is 34.

The square root of 68411491 is about 8271.1239260454. The cubic root of 68411491 is about 408.9871708842.

The spelling of 68411491 in words is "sixty-eight million, four hundred eleven thousand, four hundred ninety-one".