21119513669 has 8 divisors (see below), whose sum is σ = 22544182080. Its totient is φ = 19726156800.

The previous prime is 21119513651. The next prime is 21119513713. The reversal of 21119513669 is 96631591112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21119513669 is a prime.

It is a super-2 number, since 2×21119513669² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21119513369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7826492 + ... + 7829189.

It is an arithmetic number, because the mean of its divisors is an integer number (2818022760).

Almost surely, 2^21119513669 is an apocalyptic number.

It is an amenable number.

21119513669 is a deficient number, since it is larger than the sum of its proper divisors (1424668411).

21119513669 is a wasteful number, since it uses less digits than its factorization.

21119513669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15655771.

The product of its digits is 87480, while the sum is 44.

The spelling of 21119513669 in words is "twenty-one billion, one hundred nineteen million, five hundred thirteen thousand, six hundred sixty-nine".