68047061894 has 32 divisors (see below), whose sum is σ = 118635557376. Its totient is φ = 28671148800.

The previous prime is 68047061879. The next prime is 68047061911. The reversal of 68047061894 is 49816074086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39137 + ... + 370979.

It is an arithmetic number, because the mean of its divisors is an integer number (3707361168).

Almost surely, 2^68047061894 is an apocalyptic number.

68047061894 is a deficient number, since it is larger than the sum of its proper divisors (50588495482).

68047061894 is a wasteful number, since it uses less digits than its factorization.

68047061894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332100.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 68047061894 in words is "sixty-eight billion, forty-seven million, sixty-one thousand, eight hundred ninety-four".