11699043518 has 16 divisors (see below), whose sum is σ = 18358647840. Its totient is φ = 5580802656.

The previous prime is 11699043491. The next prime is 11699043533. The reversal of 11699043518 is 81534099611.

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 7 ways as a sum of consecutive naturals, for example, 309005 + ... + 344792.

It is an arithmetic number, because the mean of its divisors is an integer number (1147415490).

Almost surely, 2^11699043518 is an apocalyptic number.

11699043518 is a deficient number, since it is larger than the sum of its proper divisors (6659604322).

11699043518 is a wasteful number, since it uses less digits than its factorization.

11699043518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654211.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 11699043518 in words is "eleven billion, six hundred ninety-nine million, forty-three thousand, five hundred eighteen".