68457247772 has 6 divisors (see below), whose sum is σ = 119800183608. Its totient is φ = 34228623884.

The previous prime is 68457247757. The next prime is 68457247783. The reversal of 68457247772 is 27774275486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8557155968 + ... + 8557155975.

It is an arithmetic number, because the mean of its divisors is an integer number (19966697268).

Almost surely, 2^68457247772 is an apocalyptic number.

It is an amenable number.

68457247772 is a deficient number, since it is larger than the sum of its proper divisors (51342935836).

68457247772 is a wasteful number, since it uses less digits than its factorization.

68457247772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17114311947 (or 17114311945 counting only the distinct ones).

The product of its digits is 36879360, while the sum is 59.

The spelling of 68457247772 in words is "sixty-eight billion, four hundred fifty-seven million, two hundred forty-seven thousand, seven hundred seventy-two".