11800609420 has 24 divisors (see below), whose sum is σ = 25580677248. Its totient is φ = 4567977600.

The previous prime is 11800609307. The next prime is 11800609421. The reversal of 11800609420 is 2490600811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (11800609421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9516001 + ... + 9517240.

It is an arithmetic number, because the mean of its divisors is an integer number (1065861552).

Almost surely, 2^11800609420 is an apocalyptic number.

11800609420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11800609420 is an abundant number, since it is smaller than the sum of its proper divisors (13780067828).

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

11800609420 is a wasteful number, since it uses less digits than its factorization.

11800609420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19033281 (or 19033279 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 11800609420 in words is "eleven billion, eight hundred million, six hundred nine thousand, four hundred twenty".