68726280042 has 24 divisors (see below), whose sum is σ = 170179360416. Its totient is φ = 19636079976.

The previous prime is 68726280017. The next prime is 68726280067. The reversal of 68726280042 is 24008262786.

It is an interprime number because it is at equal distance from previous prime (68726280017) and next prime (68726280067).

It is a super-2 number, since 2×68726280042² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68726280042.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272723208 + ... + 272723459.

It is an arithmetic number, because the mean of its divisors is an integer number (7090806684).

Almost surely, 2^68726280042 is an apocalyptic number.

68726280042 is an abundant number, since it is smaller than the sum of its proper divisors (101453080374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68726280042 is a wasteful number, since it uses less digits than its factorization.

68726280042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545446682 (or 545446679 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 68726280042 in words is "sixty-eight billion, seven hundred twenty-six million, two hundred eighty thousand, forty-two".