68450091 has 8 divisors (see below), whose sum is σ = 91322880. Its totient is φ = 45605352.

The previous prime is 68450071. The next prime is 68450099. The reversal of 68450091 is 19005486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68450091 - 2¹⁰ = 68449067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68450099) 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 in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 11708.

It is an arithmetic number, because the mean of its divisors is an integer number (11415360).

Almost surely, 2^68450091 is an apocalyptic number.

68450091 is a deficient number, since it is larger than the sum of its proper divisors (22872789).

68450091 is a wasteful number, since it uses less digits than its factorization.

68450091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 68450091 is about 8273.4570162659. The cubic root of 68450091 is about 409.0640777329.

The spelling of 68450091 in words is "sixty-eight million, four hundred fifty thousand, ninety-one".