21514478182 has 16 divisors (see below), whose sum is σ = 33388160400. Its totient is φ = 10385172000.

The previous prime is 21514478119. The next prime is 21514478191. The reversal of 21514478182 is 28187441512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813544 + ... + 839572.

It is an arithmetic number, because the mean of its divisors is an integer number (2086760025).

Almost surely, 2^21514478182 is an apocalyptic number.

21514478182 is a deficient number, since it is larger than the sum of its proper divisors (11873682218).

21514478182 is a wasteful number, since it uses less digits than its factorization.

21514478182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40311.

The product of its digits is 143360, while the sum is 43.

The spelling of 21514478182 in words is "twenty-one billion, five hundred fourteen million, four hundred seventy-eight thousand, one hundred eighty-two".