68187271604 has 24 divisors (see below), whose sum is σ = 119856579528. Its totient is φ = 33942804480.

The previous prime is 68187271571. The next prime is 68187271627. The reversal of 68187271604 is 40617278186.

It is a happy number.

68187271604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 306180004 + 67881091600 = 17498^2 + 260540^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994724 + ... + 1061060.

It is an arithmetic number, because the mean of its divisors is an integer number (4994024147).

Almost surely, 2^68187271604 is an apocalyptic number.

It is an amenable number.

68187271604 is a deficient number, since it is larger than the sum of its proper divisors (51669307924).

68187271604 is a wasteful number, since it uses less digits than its factorization.

68187271604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67475 (or 67473 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 68187271604 in words is "sixty-eight billion, one hundred eighty-seven million, two hundred seventy-one thousand, six hundred four".