11899089908 has 6 divisors (see below), whose sum is σ = 20823407346. Its totient is φ = 5949544952.

The previous prime is 11899089887. The next prime is 11899089947. The reversal of 11899089908 is 80998099811.

It can be written as a sum of positive squares in only one way, i.e., 6990966544 + 4908123364 = 83612^2 + 70058^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1487386235 + ... + 1487386242.

It is an arithmetic number, because the mean of its divisors is an integer number (3470567891).

Almost surely, 2^11899089908 is an apocalyptic number.

It is an amenable number.

11899089908 is a deficient number, since it is larger than the sum of its proper divisors (8924317438).

11899089908 is a wasteful number, since it uses less digits than its factorization.

11899089908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974772481 (or 2974772479 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 62.

The spelling of 11899089908 in words is "eleven billion, eight hundred ninety-nine million, eighty-nine thousand, nine hundred eight".