68863089762 has 80 divisors (see below), whose sum is σ = 164827651032. Its totient is φ = 21412823040.

The previous prime is 68863089733. The next prime is 68863089857. The reversal of 68863089762 is 26798036886.

It can be written as a sum of positive squares in 4 ways, for example, as 31598262081 + 37264827681 = 177759^2 + 193041^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 68863089762.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200562 + ... + 421842.

Almost surely, 2^68863089762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68863089762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82413825516).

68863089762 is an abundant number, since it is smaller than the sum of its proper divisors (95964561270).

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

68863089762 is a wasteful number, since it uses less digits than its factorization.

68863089762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221425 (or 221416 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 68863089762 in words is "sixty-eight billion, eight hundred sixty-three million, eighty-nine thousand, seven hundred sixty-two".