68924887051 has 4 divisors (see below), whose sum is σ = 70225356672. Its totient is φ = 67624417432.

The previous prime is 68924887049. The next prime is 68924887079. The reversal of 68924887051 is 15078842986.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68924887051 - 2¹ = 68924887049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68924887001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650234731 + ... + 650234836.

It is an arithmetic number, because the mean of its divisors is an integer number (17556339168).

Almost surely, 2^68924887051 is an apocalyptic number.

68924887051 is a deficient number, since it is larger than the sum of its proper divisors (1300469621).

68924887051 is a wasteful number, since it uses less digits than its factorization.

68924887051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300469620.

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 68924887051 in words is "sixty-eight billion, nine hundred twenty-four million, eight hundred eighty-seven thousand, fifty-one".