68804532651 has 8 divisors (see below), whose sum is σ = 91748826000. Its totient is φ = 45864963872.

The previous prime is 68804532649. The next prime is 68804532691. The reversal of 68804532651 is 15623540886.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68804532651 - 2¹ = 68804532649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68804532651.

It is not an unprimeable number, because it can be changed into a prime (68804532691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147020 + ... + 1205513.

It is an arithmetic number, because the mean of its divisors is an integer number (11468603250).

Almost surely, 2^68804532651 is an apocalyptic number.

68804532651 is a deficient number, since it is larger than the sum of its proper divisors (22944293349).

68804532651 is a wasteful number, since it uses less digits than its factorization.

68804532651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362285.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 68804532651 in words is "sixty-eight billion, eight hundred four million, five hundred thirty-two thousand, six hundred fifty-one".