21119304964 has 6 divisors (see below), whose sum is σ = 36958783694. Its totient is φ = 10559652480.

The previous prime is 21119304949. The next prime is 21119304967. The reversal of 21119304964 is 46940391112.

It can be written as a sum of positive squares in only one way, i.e., 20791332864 + 327972100 = 144192^2 + 18110^2 .

It is not an unprimeable number, because it can be changed into a prime (21119304967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639913117 + ... + 2639913124.

Almost surely, 2^21119304964 is an apocalyptic number.

It is an amenable number.

21119304964 is a deficient number, since it is larger than the sum of its proper divisors (15839478730).

21119304964 is a wasteful number, since it uses less digits than its factorization.

21119304964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279826245 (or 5279826243 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 21119304964 in words is "twenty-one billion, one hundred nineteen million, three hundred four thousand, nine hundred sixty-four".