21140290589 has 4 divisors (see below), whose sum is σ = 23062135200. Its totient is φ = 19218445980.

The previous prime is 21140290553. The next prime is 21140290603. The reversal of 21140290589 is 98509204112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21140290589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21140290489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960922289 + ... + 960922310.

It is an arithmetic number, because the mean of its divisors is an integer number (5765533800).

Almost surely, 2^21140290589 is an apocalyptic number.

It is an amenable number.

21140290589 is a deficient number, since it is larger than the sum of its proper divisors (1921844611).

21140290589 is a wasteful number, since it uses less digits than its factorization.

21140290589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921844610.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 21140290589 in words is "twenty-one billion, one hundred forty million, two hundred ninety thousand, five hundred eighty-nine".