11809556754 has 16 divisors (see below), whose sum is σ = 23634052992. Its totient is φ = 3934029008.

The previous prime is 11809556741. The next prime is 11809556771. The reversal of 11809556754 is 45765590811.

It is a junction number, because it is equal to n+sod(n) for n = 11809556697 and 11809556706.

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 7 ways as a sum of consecutive naturals, for example, 612189 + ... + 631184.

It is an arithmetic number, because the mean of its divisors is an integer number (1477128312).

Almost surely, 2^11809556754 is an apocalyptic number.

11809556754 is an abundant number, since it is smaller than the sum of its proper divisors (11824496238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11809556754 is a wasteful number, since it uses less digits than its factorization.

11809556754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244961.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 11809556754 in words is "eleven billion, eight hundred nine million, five hundred fifty-six thousand, seven hundred fifty-four".