21419483766 has 32 divisors (see below), whose sum is σ = 43050905568. Its totient is φ = 7104552960.

The previous prime is 21419483749. The next prime is 21419483777. The reversal of 21419483766 is 66738491412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2066950 + ... + 2077286.

It is an arithmetic number, because the mean of its divisors is an integer number (1345340799).

Almost surely, 2^21419483766 is an apocalyptic number.

21419483766 is an abundant number, since it is smaller than the sum of its proper divisors (21631421802).

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

21419483766 is a wasteful number, since it uses less digits than its factorization.

21419483766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12016.

The product of its digits is 1741824, while the sum is 51.

The spelling of 21419483766 in words is "twenty-one billion, four hundred nineteen million, four hundred eighty-three thousand, seven hundred sixty-six".