21024890062 has 48 divisors (see below), whose sum is σ = 35087900400. Its totient is φ = 9440766720.

The previous prime is 21024890057. The next prime is 21024890083. The reversal of 21024890062 is 26009842012.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 9542653 + ... + 9544855.

It is an arithmetic number, because the mean of its divisors is an integer number (730997925).

Almost surely, 2^21024890062 is an apocalyptic number.

21024890062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21024890062 is a deficient number, since it is larger than the sum of its proper divisors (14063010338).

21024890062 is a wasteful number, since it uses less digits than its factorization.

21024890062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2678 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 21024890062 in words is "twenty-one billion, twenty-four million, eight hundred ninety thousand, sixty-two".