68541151856 has 40 divisors (see below), whose sum is σ = 134736563808. Its totient is φ = 33770912000.

The previous prime is 68541151829. The next prime is 68541151879. The reversal of 68541151856 is 65815114586.

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, 2418086 + ... + 2446266.

Almost surely, 2^68541151856 is an apocalyptic number.

It is an amenable number.

68541151856 is a deficient number, since it is larger than the sum of its proper divisors (66195411952).

68541151856 is a wasteful number, since it uses less digits than its factorization.

68541151856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30401 (or 30395 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 50.

The spelling of 68541151856 in words is "sixty-eight billion, five hundred forty-one million, one hundred fifty-one thousand, eight hundred fifty-six".