21490082433 has 16 divisors (see below), whose sum is σ = 32312343360. Its totient is φ = 14112888768.

The previous prime is 21490082429. The next prime is 21490082441. The reversal of 21490082433 is 33428009412.

21490082433 is a `hidden beast` number, since 2 + 149 + 0 + 0 + 82 + 433 = 666.

It is not a de Polignac number, because 21490082433 - 2² = 21490082429 is a prime.

It is a super-4 number, since 4×21490082433⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (21490082333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5937960 + ... + 5941577.

It is an arithmetic number, because the mean of its divisors is an integer number (2019521460).

Almost surely, 2^21490082433 is an apocalyptic number.

It is an amenable number.

21490082433 is a deficient number, since it is larger than the sum of its proper divisors (10822260927).

21490082433 is a wasteful number, since it uses less digits than its factorization.

21490082433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879613 (or 11879607 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 21490082433 in words is "twenty-one billion, four hundred ninety million, eighty-two thousand, four hundred thirty-three".