21412672850 has 12 divisors (see below), whose sum is σ = 39827571594. Its totient is φ = 8565069120.

The previous prime is 21412672849. The next prime is 21412672867. The reversal of 21412672850 is 5827621412.

It can be written as a sum of positive squares in 3 ways, for example, as 12622297801 + 8790375049 = 112349^2 + 93757^2 .

It is a super-2 number, since 2×21412672850² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 214126679 + ... + 214126778.

Almost surely, 2^21412672850 is an apocalyptic number.

21412672850 is a deficient number, since it is larger than the sum of its proper divisors (18414898744).

21412672850 is a wasteful number, since it uses less digits than its factorization.

21412672850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428253469 (or 428253464 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 21412672850 in words is "twenty-one billion, four hundred twelve million, six hundred seventy-two thousand, eight hundred fifty".