21469753376 has 48 divisors (see below), whose sum is σ = 42792261120. Its totient is φ = 10602155520.

The previous prime is 21469753307. The next prime is 21469753381. The reversal of 21469753376 is 67335796412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818565 + ... + 2826171.

It is an arithmetic number, because the mean of its divisors is an integer number (891505440).

Almost surely, 2^21469753376 is an apocalyptic number.

It is an amenable number.

21469753376 is a deficient number, since it is larger than the sum of its proper divisors (21322507744).

21469753376 is an equidigital number, since it uses as much as digits as its factorization.

21469753376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697 (or 8689 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 53.

The spelling of 21469753376 in words is "twenty-one billion, four hundred sixty-nine million, seven hundred fifty-three thousand, three hundred seventy-six".