21029065818462 has 24 divisors (see below), whose sum is σ = 49067820243624. Its totient is φ = 6470481790224.

The previous prime is 21029065818457. The next prime is 21029065818529. The reversal of 21029065818462 is 26481856092012.

21029065818462 is a `hidden beast` number, since 2 + 10 + 2 + 9 + 0 + 6 + 581 + 8 + 46 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 21029065818399 and 21029065818408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44933901088 + ... + 44933901555.

It is an arithmetic number, because the mean of its divisors is an integer number (2044492510151).

Almost surely, 2^{21029065818462} is an apocalyptic number.

21029065818462 is an abundant number, since it is smaller than the sum of its proper divisors (28038754425162).

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

21029065818462 is a wasteful number, since it uses less digits than its factorization.

21029065818462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89867802664 (or 89867802661 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 21029065818462 in words is "twenty-one trillion, twenty-nine billion, sixty-five million, eight hundred eighteen thousand, four hundred sixty-two".