11138949936 has 30 divisors (see below), whose sum is σ = 31173589460. Its totient is φ = 3712983264.

The previous prime is 11138949923. The next prime is 11138949953. The reversal of 11138949936 is 63994983111.

11138949936 is a `hidden beast` number, since 1 + 113 + 8 + 9 + 499 + 36 = 666.

It is a nude number because it is divisible by every one of its digits.

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 5 ways as a sum of consecutive naturals, for example, 38676766 + ... + 38677053.

Almost surely, 2^11138949936 is an apocalyptic number.

11138949936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11138949936 is an abundant number, since it is smaller than the sum of its proper divisors (20034639524).

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

11138949936 is a wasteful number, since it uses less digits than its factorization.

11138949936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77353833 (or 77353824 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 11138949936 in words is "eleven billion, one hundred thirty-eight million, nine hundred forty-nine thousand, nine hundred thirty-six".