21352275715 has 8 divisors (see below), whose sum is σ = 26971295760. Its totient is φ = 16182777312.

The previous prime is 21352275691. The next prime is 21352275719. The reversal of 21352275715 is 51757225312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21352275715 - 2¹¹ = 21352273667 is a prime.

It is a super-2 number, since 2×21352275715² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21352275719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112380304 + ... + 112380493.

It is an arithmetic number, because the mean of its divisors is an integer number (3371411970).

Almost surely, 2^21352275715 is an apocalyptic number.

21352275715 is a deficient number, since it is larger than the sum of its proper divisors (5619020045).

21352275715 is a wasteful number, since it uses less digits than its factorization.

21352275715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224760821.

The product of its digits is 147000, while the sum is 40.

The spelling of 21352275715 in words is "twenty-one billion, three hundred fifty-two million, two hundred seventy-five thousand, seven hundred fifteen".