68703784202 has 4 divisors (see below), whose sum is σ = 103055676306. Its totient is φ = 34351892100.

The previous prime is 68703784199. The next prime is 68703784211. The reversal of 68703784202 is 20248730786.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20248730786 = 2 ⋅10124365393.

It can be written as a sum of positive squares in only one way, i.e., 59189537521 + 9514246681 = 243289^2 + 97541^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17175946049 + ... + 17175946052.

Almost surely, 2^68703784202 is an apocalyptic number.

68703784202 is a deficient number, since it is larger than the sum of its proper divisors (34351892104).

68703784202 is a wasteful number, since it uses less digits than its factorization.

68703784202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34351892103.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 68703784202 in words is "sixty-eight billion, seven hundred three million, seven hundred eighty-four thousand, two hundred two".