21514411424254 has 32 divisors (see below), whose sum is σ = 37711315998720. Its totient is φ = 9015361385472.

The previous prime is 21514411424249. The next prime is 21514411424263. The reversal of 21514411424254 is 45242411441512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94315459 + ... + 94543294.

It is an arithmetic number, because the mean of its divisors is an integer number (1178478624960).

Almost surely, 2^{21514411424254} is an apocalyptic number.

21514411424254 is a deficient number, since it is larger than the sum of its proper divisors (16196904574466).

21514411424254 is a wasteful number, since it uses less digits than its factorization.

21514411424254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188858944.

The product of its digits is 204800, while the sum is 40.

Adding to 21514411424254 its reverse (45242411441512), we get a palindrome (66756822865766).

The spelling of 21514411424254 in words is "twenty-one trillion, five hundred fourteen billion, four hundred eleven million, four hundred twenty-four thousand, two hundred fifty-four".