721712653041147 has 16 divisors (see below), whose sum is σ = 1010134658373120. Its totient is φ = 457466737631552.

The previous prime is 721712653041103. The next prime is 721712653041157. The reversal of 721712653041147 is 741140356217127.

721712653041147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 721712653041147 - 2¹⁵ = 721712653008379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 721712653041147.

It is not an unprimeable number, because it can be changed into a prime (721712653041157) 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, 31316167122 + ... + 31316190167.

It is an arithmetic number, because the mean of its divisors is an integer number (63133416148320).

Almost surely, 2^{721712653041147} is an apocalyptic number.

721712653041147 is a deficient number, since it is larger than the sum of its proper divisors (288422005331973).

721712653041147 is a wasteful number, since it uses less digits than its factorization.

721712653041147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62632357482.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 721712653041147 in words is "seven hundred twenty-one trillion, seven hundred twelve billion, six hundred fifty-three million, forty-one thousand, one hundred forty-seven".