68481283492 has 6 divisors (see below), whose sum is σ = 119842246118. Its totient is φ = 34240641744.

The previous prime is 68481283489. The next prime is 68481283499. The reversal of 68481283492 is 29438218486.

It can be written as a sum of positive squares in only one way, i.e., 65917481536 + 2563801956 = 256744^2 + 50634^2 .

It is not an unprimeable number, because it can be changed into a prime (68481283499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8560160433 + ... + 8560160440.

Almost surely, 2^68481283492 is an apocalyptic number.

It is an amenable number.

68481283492 is a deficient number, since it is larger than the sum of its proper divisors (51360962626).

68481283492 is a wasteful number, since it uses less digits than its factorization.

68481283492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17120320877 (or 17120320875 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 55.

The spelling of 68481283492 in words is "sixty-eight billion, four hundred eighty-one million, two hundred eighty-three thousand, four hundred ninety-two".