42722868651 has 16 divisors (see below), whose sum is σ = 57213039744. Its totient is φ = 28357412864.

The previous prime is 42722868647. The next prime is 42722868679. The reversal of 42722868651 is 15686822724.

It is a cyclic number.

It is not a de Polignac number, because 42722868651 - 2² = 42722868647 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 42722868594 and 42722868603.

It is not an unprimeable number, because it can be changed into a prime (42722860651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1735636 + ... + 1760078.

It is an arithmetic number, because the mean of its divisors is an integer number (3575814984).

Almost surely, 2^42722868651 is an apocalyptic number.

42722868651 is a deficient number, since it is larger than the sum of its proper divisors (14490171093).

42722868651 is a wasteful number, since it uses less digits than its factorization.

42722868651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26970.

The product of its digits is 2580480, while the sum is 51.

The spelling of 42722868651 in words is "forty-two billion, seven hundred twenty-two million, eight hundred sixty-eight thousand, six hundred fifty-one".