68873812451 has 12 divisors (see below), whose sum is σ = 69588473472. Its totient is φ = 68166378144.

The previous prime is 68873812439. The next prime is 68873812457. The reversal of 68873812451 is 15421837886.

It is not a de Polignac number, because 68873812451 - 2⁶ = 68873812387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68873812393 and 68873812402.

It is not an unprimeable number, because it can be changed into a prime (68873812457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12911981 + ... + 12917313.

It is an arithmetic number, because the mean of its divisors is an integer number (5799039456).

Almost surely, 2^68873812451 is an apocalyptic number.

68873812451 is a deficient number, since it is larger than the sum of its proper divisors (714661021).

68873812451 is a wasteful number, since it uses less digits than its factorization.

68873812451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638 (or 6529 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The spelling of 68873812451 in words is "sixty-eight billion, eight hundred seventy-three million, eight hundred twelve thousand, four hundred fifty-one".