11811446420 has 24 divisors (see below), whose sum is σ = 25118016000. Its totient is φ = 4664773152.

The previous prime is 11811446417. The next prime is 11811446429. The reversal of 11811446420 is 2464411811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811446429) 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, 3736220 + ... + 3739379.

It is an arithmetic number, because the mean of its divisors is an integer number (1046584000).

Almost surely, 2^11811446420 is an apocalyptic number.

11811446420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11811446420 is an abundant number, since it is smaller than the sum of its proper divisors (13306569580).

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

11811446420 is a wasteful number, since it uses less digits than its factorization.

11811446420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475687 (or 7475685 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 11811446420 in words is "eleven billion, eight hundred eleven million, four hundred forty-six thousand, four hundred twenty".