68740434202 has 24 divisors (see below), whose sum is σ = 113486521428. Its totient is φ = 31204293120.

The previous prime is 68740434197. The next prime is 68740434227. The reversal of 68740434202 is 20243404786.

It can be written as a sum of positive squares in 2 ways, for example, as 67397871321 + 1342562881 = 259611^2 + 36641^2 .

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, 4423 + ... + 370810.

Almost surely, 2^68740434202 is an apocalyptic number.

68740434202 is a deficient number, since it is larger than the sum of its proper divisors (44746087226).

68740434202 is a wasteful number, since it uses less digits than its factorization.

68740434202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376014 (or 376003 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

Adding to 68740434202 its reverse (20243404786), we get a palindrome (88983838988).

The spelling of 68740434202 in words is "sixty-eight billion, seven hundred forty million, four hundred thirty-four thousand, two hundred two".