11938987616 has 12 divisors (see below), whose sum is σ = 23504881932. Its totient is φ = 5969493792.

The previous prime is 11938987609. The next prime is 11938987651. The reversal of 11938987616 is 61678983911.

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 as a sum of consecutive naturals, namely, 186546650 + ... + 186546713.

It is an arithmetic number, because the mean of its divisors is an integer number (1958740161).

Almost surely, 2^11938987616 is an apocalyptic number.

11938987616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11938987616 is a deficient number, since it is larger than the sum of its proper divisors (11565894316).

11938987616 is an equidigital number, since it uses as much as digits as its factorization.

11938987616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373093373 (or 373093365 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 59.

The spelling of 11938987616 in words is "eleven billion, nine hundred thirty-eight million, nine hundred eighty-seven thousand, six hundred sixteen".