21701058219 has 80 divisors (see below), whose sum is σ = 33903444960. Its totient is φ = 13821373440.

The previous prime is 21701058217. The next prime is 21701058227. The reversal of 21701058219 is 91285010712.

It is a happy number.

21701058219 is a `hidden beast` number, since 2 + 1 + 70 + 1 + 0 + 582 + 1 + 9 = 666.

It is not a de Polignac number, because 21701058219 - 2¹ = 21701058217 is a prime.

It is a super-2 number, since 2×21701058219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21701058217) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 47073649 + ... + 47074109.

It is an arithmetic number, because the mean of its divisors is an integer number (423793062).

Almost surely, 2^21701058219 is an apocalyptic number.

21701058219 is a deficient number, since it is larger than the sum of its proper divisors (12202386741).

21701058219 is a wasteful number, since it uses less digits than its factorization.

21701058219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The spelling of 21701058219 in words is "twenty-one billion, seven hundred one million, fifty-eight thousand, two hundred nineteen".