11788090920 has 64 divisors (see below), whose sum is σ = 39293640000. Its totient is φ = 3143490624.

The previous prime is 11788090913. The next prime is 11788090927. The reversal of 11788090920 is 2909088711.

It is an interprime number because it is at equal distance from previous prime (11788090913) and next prime (11788090927).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11788090927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5456370 + ... + 5458529.

It is an arithmetic number, because the mean of its divisors is an integer number (613963125).

Almost surely, 2^11788090920 is an apocalyptic number.

11788090920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11788090920 is an abundant number, since it is smaller than the sum of its proper divisors (27505549080).

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

11788090920 is a wasteful number, since it uses less digits than its factorization.

11788090920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10914919 (or 10914909 counting only the distinct ones).

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

The spelling of 11788090920 in words is "eleven billion, seven hundred eighty-eight million, ninety thousand, nine hundred twenty".