21014316510 has 32 divisors (see below), whose sum is σ = 55019302272. Its totient is φ = 5094379680.

The previous prime is 21014316497. The next prime is 21014316541. The reversal of 21014316510 is 1561341012.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 31839544 + ... + 31840203.

It is an arithmetic number, because the mean of its divisors is an integer number (1719353196).

Almost surely, 2^21014316510 is an apocalyptic number.

21014316510 is an abundant number, since it is smaller than the sum of its proper divisors (34004985762).

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

21014316510 is a wasteful number, since it uses less digits than its factorization.

21014316510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63679768.

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

Adding to 21014316510 its reverse (1561341012), we get a palindrome (22575657522).

The spelling of 21014316510 in words is "twenty-one billion, fourteen million, three hundred sixteen thousand, five hundred ten".