21033455462 has 16 divisors (see below), whose sum is σ = 33701711472. Its totient is φ = 9810501120.

The previous prime is 21033455437. The next prime is 21033455477. The reversal of 21033455462 is 26455433012.

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, 2733464 + ... + 2741147.

It is an arithmetic number, because the mean of its divisors is an integer number (2106356967).

Almost surely, 2^21033455462 is an apocalyptic number.

21033455462 is a deficient number, since it is larger than the sum of its proper divisors (12668256010).

21033455462 is a wasteful number, since it uses less digits than its factorization.

21033455462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474743.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 21033455462 its reverse (26455433012), we get a palindrome (47488888474).

The spelling of 21033455462 in words is "twenty-one billion, thirty-three million, four hundred fifty-five thousand, four hundred sixty-two".