11909434254 has 16 divisors (see below), whose sum is σ = 23827765248. Its totient is φ = 3968328632.

The previous prime is 11909434253. The next prime is 11909434267. The reversal of 11909434254 is 45243490911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11909434253) by changing a digit.

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, 353232 + ... + 385475.

It is an arithmetic number, because the mean of its divisors is an integer number (1489235328).

Almost surely, 2^11909434254 is an apocalyptic number.

11909434254 is an abundant number, since it is smaller than the sum of its proper divisors (11918330994).

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

11909434254 is a wasteful number, since it uses less digits than its factorization.

11909434254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741399.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 11909434254 in words is "eleven billion, nine hundred nine million, four hundred thirty-four thousand, two hundred fifty-four".