11604899709 has 24 divisors (see below), whose sum is σ = 18055870560. Its totient is φ = 7139971872.

The previous prime is 11604899699. The next prime is 11604899723. The reversal of 11604899709 is 90799840611.

11604899709 is a `hidden beast` number, since 11 + 60 + 489 + 97 + 0 + 9 = 666.

It is not a de Polignac number, because 11604899709 - 2¹² = 11604895613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11604899309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845302 + ... + 858920.

It is an arithmetic number, because the mean of its divisors is an integer number (752327940).

Almost surely, 2^11604899709 is an apocalyptic number.

It is an amenable number.

11604899709 is a deficient number, since it is larger than the sum of its proper divisors (6450970851).

11604899709 is a wasteful number, since it uses less digits than its factorization.

11604899709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921 (or 20918 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The spelling of 11604899709 in words is "eleven billion, six hundred four million, eight hundred ninety-nine thousand, seven hundred nine".