20869935304 has 8 divisors (see below), whose sum is σ = 39131128710. Its totient is φ = 10434967648.

The previous prime is 20869935283. The next prime is 20869935313. The reversal of 20869935304 is 40353996802.

It can be written as a sum of positive squares in only one way, i.e., 20303400100 + 566535204 = 142490^2 + 23802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304370949 + ... + 1304370964.

Almost surely, 2^20869935304 is an apocalyptic number.

It is an amenable number.

20869935304 is a deficient number, since it is larger than the sum of its proper divisors (18261193406).

20869935304 is a wasteful number, since it uses less digits than its factorization.

20869935304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608741919 (or 2608741915 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 20869935304 in words is "twenty billion, eight hundred sixty-nine million, nine hundred thirty-five thousand, three hundred four".