11509741534 has 8 divisors (see below), whose sum is σ = 17267317848. Its totient is φ = 5753968920.

The previous prime is 11509741517. The next prime is 11509741577. The reversal of 11509741534 is 43514790511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 434857 + ... + 460564.

It is an arithmetic number, because the mean of its divisors is an integer number (2158414731).

Almost surely, 2^11509741534 is an apocalyptic number.

11509741534 is a deficient number, since it is larger than the sum of its proper divisors (5757576314).

11509741534 is an equidigital number, since it uses as much as digits as its factorization.

11509741534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901850.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 11509741534 in words is "eleven billion, five hundred nine million, seven hundred forty-one thousand, five hundred thirty-four".