63722606540217 has 16 divisors (see below), whose sum is σ = 85340104180032. Its totient is φ = 42293433562560.

The previous prime is 63722606540149. The next prime is 63722606540227. The reversal of 63722606540217 is 71204560622736.

It is not a de Polignac number, because 63722606540217 - 2²³ = 63722598151609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63722606540217.

It is not an unprimeable number, because it can be changed into a prime (63722606540227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23930367 + ... + 26459547.

It is an arithmetic number, because the mean of its divisors is an integer number (5333756511252).

Almost surely, 2^{63722606540217} is an apocalyptic number.

It is an amenable number.

63722606540217 is a deficient number, since it is larger than the sum of its proper divisors (21617497639815).

63722606540217 is a wasteful number, since it uses less digits than its factorization.

63722606540217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566408.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 63722606540217 in words is "sixty-three trillion, seven hundred twenty-two billion, six hundred six million, five hundred forty thousand, two hundred seventeen".