21132732659 has 2 divisors, whose sum is σ = 21132732660. Its totient is φ = 21132732658.

The previous prime is 21132732619. The next prime is 21132732679. The reversal of 21132732659 is 95623723112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21132732659 is a prime.

It is not a weakly prime, because it can be changed into another prime (21132732619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10566366329 + 10566366330.

It is an arithmetic number, because the mean of its divisors is an integer number (10566366330).

Almost surely, 2^21132732659 is an apocalyptic number.

21132732659 is a deficient number, since it is larger than the sum of its proper divisors (1).

21132732659 is an equidigital number, since it uses as much as digits as its factorization.

21132732659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The spelling of 21132732659 in words is "twenty-one billion, one hundred thirty-two million, seven hundred thirty-two thousand, six hundred fifty-nine".