68996499842 has 8 divisors (see below), whose sum is σ = 106291905276. Its totient is φ = 33565864752.

The previous prime is 68996499841. The next prime is 68996499877. The reversal of 68996499842 is 24899469986.

It can be written as a sum of positive squares in 2 ways, for example, as 68366037961 + 630461881 = 261469^2 + 25109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (74), and also a Moran number because the ratio is a prime number: 932385133 = 68996499842 / (6 + 8 + 9 + 9 + 6 + 4 + 9 + 9 + 8 + 4 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 68996499842.

It is not an unprimeable number, because it can be changed into a prime (68996499841) 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, 466192493 + ... + 466192640.

Almost surely, 2^68996499842 is an apocalyptic number.

68996499842 is a deficient number, since it is larger than the sum of its proper divisors (37295405434).

68996499842 is a wasteful number, since it uses less digits than its factorization.

68996499842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932385172.

The product of its digits is 483729408, while the sum is 74.

The spelling of 68996499842 in words is "sixty-eight billion, nine hundred ninety-six million, four hundred ninety-nine thousand, eight hundred forty-two".