68981315360 has 24 divisors (see below), whose sum is σ = 162968357916. Its totient is φ = 27592526080.

The previous prime is 68981315309. The next prime is 68981315369. The reversal of 68981315360 is 6351318986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66005831056 + 2975484304 = 256916^2 + 54548^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68981315299 and 68981315308.

It is not an unprimeable number, because it can be changed into a prime (68981315369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215566451 + ... + 215566770.

Almost surely, 2^68981315360 is an apocalyptic number.

It is an amenable number.

68981315360 is an abundant number, since it is smaller than the sum of its proper divisors (93987042556).

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

68981315360 is a wasteful number, since it uses less digits than its factorization.

68981315360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431133236 (or 431133228 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 68981315360 in words is "sixty-eight billion, nine hundred eighty-one million, three hundred fifteen thousand, three hundred sixty".