68224529684451 has 128 divisors (see below), whose sum is σ = 110095096320000. Its totient is φ = 37519836469248.

The previous prime is 68224529684417. The next prime is 68224529684471. The reversal of 68224529684451 is 15448692542286.

It is a happy number.

It is not a de Polignac number, because 68224529684451 - 2⁶ = 68224529684387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68224529684401) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13147912165 + ... + 13147917353.

It is an arithmetic number, because the mean of its divisors is an integer number (860117940000).

Almost surely, 2^{68224529684451} is an apocalyptic number.

68224529684451 is a deficient number, since it is larger than the sum of its proper divisors (41870566635549).

68224529684451 is a wasteful number, since it uses less digits than its factorization.

68224529684451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578 (or 6564 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 66.

The spelling of 68224529684451 in words is "sixty-eight trillion, two hundred twenty-four billion, five hundred twenty-nine million, six hundred eighty-four thousand, four hundred fifty-one".