11902007988 has 72 divisors (see below), whose sum is σ = 32423279616. Its totient is φ = 3659515200.

The previous prime is 11902007983. The next prime is 11902008043. The reversal of 11902007988 is 88970020911.

11902007988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11902007983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698733 + ... + 715563.

It is an arithmetic number, because the mean of its divisors is an integer number (450323328).

Almost surely, 2^11902007988 is an apocalyptic number.

11902007988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11902007988 is an abundant number, since it is smaller than the sum of its proper divisors (20521271628).

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

11902007988 is a wasteful number, since it uses less digits than its factorization.

11902007988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18365 (or 18360 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 11902007988 in words is "eleven billion, nine hundred two million, seven thousand, nine hundred eighty-eight".