11820675009 has 48 divisors (see below), whose sum is σ = 18725999936. Its totient is φ = 6588362880.

The previous prime is 11820674989. The next prime is 11820675037. The reversal of 11820675009 is 90057602811.

It is not a de Polignac number, because 11820675009 - 2¹² = 11820670913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11820676009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1302642 + ... + 1311684.

Almost surely, 2^11820675009 is an apocalyptic number.

It is an amenable number.

11820675009 is a deficient number, since it is larger than the sum of its proper divisors (6905324927).

11820675009 is a wasteful number, since it uses less digits than its factorization.

11820675009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9358 (or 9347 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 11820675009 in words is "eleven billion, eight hundred twenty million, six hundred seventy-five thousand, nine".