68451244072 has 16 divisors (see below), whose sum is σ = 129892422240. Its totient is φ = 33813264816.

The previous prime is 68451244061. The next prime is 68451244091. The reversal of 68451244072 is 27044215486.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51543948 + ... + 51545275.

It is an arithmetic number, because the mean of its divisors is an integer number (8118276390).

Almost surely, 2^68451244072 is an apocalyptic number.

It is an amenable number.

68451244072 is a deficient number, since it is larger than the sum of its proper divisors (61441178168).

68451244072 is a wasteful number, since it uses less digits than its factorization.

68451244072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103089312 (or 103089308 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 68451244072 in words is "sixty-eight billion, four hundred fifty-one million, two hundred forty-four thousand, seventy-two".