11387535399 has 12 divisors (see below), whose sum is σ = 16893221176. Its totient is φ = 7386509232.

The previous prime is 11387535353. The next prime is 11387535407. The reversal of 11387535399 is 99353578311.

11387535399 is a `hidden beast` number, since 1 + 1 + 38 + 75 + 3 + 539 + 9 = 666.

It is not a de Polignac number, because 11387535399 - 2⁸ = 11387535143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11387535349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17098069 + ... + 17098734.

Almost surely, 2^11387535399 is an apocalyptic number.

11387535399 is a deficient number, since it is larger than the sum of its proper divisors (5505685777).

11387535399 is a wasteful number, since it uses less digits than its factorization.

11387535399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34196846 (or 34196843 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 54.

The spelling of 11387535399 in words is "eleven billion, three hundred eighty-seven million, five hundred thirty-five thousand, three hundred ninety-nine".