21114560487 has 24 divisors (see below), whose sum is σ = 29705284224. Its totient is φ = 13338415024.

The previous prime is 21114560461. The next prime is 21114560501. The reversal of 21114560487 is 78406541112.

It is not a de Polignac number, because 21114560487 - 2⁸ = 21114560231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114560417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107638 + ... + 231980.

It is an arithmetic number, because the mean of its divisors is an integer number (1237720176).

Almost surely, 2^21114560487 is an apocalyptic number.

21114560487 is a deficient number, since it is larger than the sum of its proper divisors (8590723737).

21114560487 is a wasteful number, since it uses less digits than its factorization.

21114560487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124499 (or 124476 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 21114560487 in words is "twenty-one billion, one hundred fourteen million, five hundred sixty thousand, four hundred eighty-seven".