21874852060 has 12 divisors (see below), whose sum is σ = 45937189368. Its totient is φ = 8749940816.

The previous prime is 21874852037. The next prime is 21874852067. The reversal of 21874852060 is 6025847812.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21874851998 and 21874852016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21874852067) 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 3 ways as a sum of consecutive naturals, for example, 546871282 + ... + 546871321.

It is an arithmetic number, because the mean of its divisors is an integer number (3828099114).

Almost surely, 2^21874852060 is an apocalyptic number.

21874852060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21874852060 is an abundant number, since it is smaller than the sum of its proper divisors (24062337308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21874852060 is a wasteful number, since it uses less digits than its factorization.

21874852060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093742612 (or 1093742610 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 21874852060 in words is "twenty-one billion, eight hundred seventy-four million, eight hundred fifty-two thousand, sixty".