21010514316 has 48 divisors (see below), whose sum is σ = 54725075328. Its totient is φ = 6218755200.

The previous prime is 21010514243. The next prime is 21010514339. The reversal of 21010514316 is 61341501012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1845145 + ... + 1856496.

It is an arithmetic number, because the mean of its divisors is an integer number (1140105736).

Almost surely, 2^21010514316 is an apocalyptic number.

It is an amenable number.

21010514316 is an abundant number, since it is smaller than the sum of its proper divisors (33714561012).

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

21010514316 is a wasteful number, since it uses less digits than its factorization.

21010514316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701702 (or 3701700 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 21010514316 in words is "twenty-one billion, ten million, five hundred fourteen thousand, three hundred sixteen".