11809107154 has 32 divisors (see below), whose sum is σ = 20211037056. Its totient is φ = 5126534400.

The previous prime is 11809107131. The next prime is 11809107161. The reversal of 11809107154 is 45170190811.

It is a happy number.

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 in 15 ways as a sum of consecutive naturals, for example, 782379 + ... + 797329.

It is an arithmetic number, because the mean of its divisors is an integer number (631594908).

Almost surely, 2^11809107154 is an apocalyptic number.

11809107154 is a deficient number, since it is larger than the sum of its proper divisors (8401929902).

11809107154 is a wasteful number, since it uses less digits than its factorization.

11809107154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16770.

The product of its (nonzero) digits is 10080, while the sum is 37.

Adding to 11809107154 its reverse (45170190811), we get a palindrome (56979297965).

The spelling of 11809107154 in words is "eleven billion, eight hundred nine million, one hundred seven thousand, one hundred fifty-four".