68215854 has 32 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 19445472.

The previous prime is 68215853. The next prime is 68215879. The reversal of 68215854 is 45851286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68215853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19512 + ... + 22740.

It is an arithmetic number, because the mean of its divisors is an integer number (4883760).

Almost surely, 2^68215854 is an apocalyptic number.

68215854 is an abundant number, since it is smaller than the sum of its proper divisors (88064466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68215854 is a wasteful number, since it uses less digits than its factorization.

68215854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744.

The product of its digits is 76800, while the sum is 39.

The square root of 68215854 is about 8259.2889524462. The cubic root of 68215854 is about 408.5969371446.

The spelling of 68215854 in words is "sixty-eight million, two hundred fifteen thousand, eight hundred fifty-four".