68311542 has 32 divisors (see below), whose sum is σ = 155790432. Its totient is φ = 19782144.

The previous prime is 68311531. The next prime is 68311549. The reversal of 68311542 is 24511386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68311549) 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 15 ways as a sum of consecutive naturals, for example, 24433 + ... + 27084.

It is an arithmetic number, because the mean of its divisors is an integer number (4868451).

Almost surely, 2^68311542 is an apocalyptic number.

68311542 is an abundant number, since it is smaller than the sum of its proper divisors (87478890).

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

68311542 is a wasteful number, since it uses less digits than its factorization.

68311542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51552.

The product of its digits is 5760, while the sum is 30.

The square root of 68311542 is about 8265.0796729372. The cubic root of 68311542 is about 408.7878974298.

The spelling of 68311542 in words is "sixty-eight million, three hundred eleven thousand, five hundred forty-two".