21411012446 has 64 divisors (see below), whose sum is σ = 34640179200. Its totient is φ = 9906624000.

The previous prime is 21411012443. The next prime is 21411012449. The reversal of 21411012446 is 64421011412.

It is an interprime number because it is at equal distance from previous prime (21411012443) and next prime (21411012449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411012443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53393846 + ... + 53394246.

It is an arithmetic number, because the mean of its divisors is an integer number (541252800).

Almost surely, 2^21411012446 is an apocalyptic number.

21411012446 is a deficient number, since it is larger than the sum of its proper divisors (13229166754).

21411012446 is a wasteful number, since it uses less digits than its factorization.

21411012446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21411012446 its reverse (64421011412), we get a palindrome (85832023858).

The spelling of 21411012446 in words is "twenty-one billion, four hundred eleven million, twelve thousand, four hundred forty-six".