11899802504 has 8 divisors (see below), whose sum is σ = 22312129710. Its totient is φ = 5949901248.

The previous prime is 11899802503. The next prime is 11899802561. The reversal of 11899802504 is 40520899811.

It can be written as a sum of positive squares in only one way, i.e., 11642841604 + 256960900 = 107902^2 + 16030^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11899802503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743737649 + ... + 743737664.

Almost surely, 2^11899802504 is an apocalyptic number.

It is an amenable number.

11899802504 is a deficient number, since it is larger than the sum of its proper divisors (10412327206).

11899802504 is a wasteful number, since it uses less digits than its factorization.

11899802504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487475319 (or 1487475315 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 11899802504 in words is "eleven billion, eight hundred ninety-nine million, eight hundred two thousand, five hundred four".