21502514453314 has 64 divisors (see below), whose sum is σ = 34024693248000. Its totient is φ = 10178471793600.

The previous prime is 21502514453297. The next prime is 21502514453339. The reversal of 21502514453314 is 41335441520512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555615537 + ... + 555654235.

It is an arithmetic number, because the mean of its divisors is an integer number (531635832000).

Almost surely, 2^{21502514453314} is an apocalyptic number.

21502514453314 is a deficient number, since it is larger than the sum of its proper divisors (12522178794686).

21502514453314 is a wasteful number, since it uses less digits than its factorization.

21502514453314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39719.

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 21502514453314 its reverse (41335441520512), we get a palindrome (62837955973826).

The spelling of 21502514453314 in words is "twenty-one trillion, five hundred two billion, five hundred fourteen million, four hundred fifty-three thousand, three hundred fourteen".