21482902519 has 16 divisors (see below), whose sum is σ = 23774867200. Its totient is φ = 19282924800.

The previous prime is 21482902477. The next prime is 21482902559. The reversal of 21482902519 is 91520928412.

It is a cyclic number.

It is not a de Polignac number, because 21482902519 - 2¹⁹ = 21482378231 is a prime.

It is a super-2 number, since 2×21482902519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21482902559) 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, 853882 + ... + 878680.

It is an arithmetic number, because the mean of its divisors is an integer number (1485929200).

Almost surely, 2^21482902519 is an apocalyptic number.

21482902519 is the 84623-rd hex number.

21482902519 is a deficient number, since it is larger than the sum of its proper divisors (2291964681).

21482902519 is a wasteful number, since it uses less digits than its factorization.

21482902519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26650.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 21482902519 in words is "twenty-one billion, four hundred eighty-two million, nine hundred two thousand, five hundred nineteen".