21514453132510 has 16 divisors (see below), whose sum is σ = 41704939918656. Its totient is φ = 7943798079648.

The previous prime is 21514453132493. The next prime is 21514453132511. The reversal of 21514453132510 is 1523135441512.

It is a self number, because there is not a number n which added to its sum of digits gives 21514453132510.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514453132511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82747896534 + ... + 82747896793.

It is an arithmetic number, because the mean of its divisors is an integer number (2606558744916).

Almost surely, 2^{21514453132510} is an apocalyptic number.

21514453132510 is a deficient number, since it is larger than the sum of its proper divisors (20190486786146).

21514453132510 is a wasteful number, since it uses less digits than its factorization.

21514453132510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165495793347.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 21514453132510 in words is "twenty-one trillion, five hundred fourteen billion, four hundred fifty-three million, one hundred thirty-two thousand, five hundred ten".