68723787962 has 4 divisors (see below), whose sum is σ = 103085681946. Its totient is φ = 34361893980.

The previous prime is 68723787959. The next prime is 68723787967. The reversal of 68723787962 is 26978732786.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50800201321 + 17923586641 = 225389^2 + 133879^2 .

It is a super-2 number, since 2×68723787962² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68723787967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17180946989 + ... + 17180946992.

Almost surely, 2^68723787962 is an apocalyptic number.

68723787962 is a deficient number, since it is larger than the sum of its proper divisors (34361893984).

68723787962 is a wasteful number, since it uses less digits than its factorization.

68723787962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34361893983.

The product of its digits is 85349376, while the sum is 65.

The spelling of 68723787962 in words is "sixty-eight billion, seven hundred twenty-three million, seven hundred eighty-seven thousand, nine hundred sixty-two".