11812547988720 has 160 divisors (see below), whose sum is σ = 42000170864640. Its totient is φ = 3048399463680.

The previous prime is 11812547988559. The next prime is 11812547988721. The reversal of 11812547988720 is 2788974521811.

11812547988720 is a `hidden beast` number, since 1 + 1 + 8 + 1 + 2 + 547 + 9 + 8 + 87 + 2 + 0 = 666.

11812547988720 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 (11812547988721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88139044 + ... + 88272963.

It is an arithmetic number, because the mean of its divisors is an integer number (262501067904).

Almost surely, 2^{11812547988720} is an apocalyptic number.

11812547988720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11812547988720 is an abundant number, since it is smaller than the sum of its proper divisors (30187622875920).

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

11812547988720 is a wasteful number, since it uses less digits than its factorization.

11812547988720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176412060 (or 176412048 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 63.

The spelling of 11812547988720 in words is "eleven trillion, eight hundred twelve billion, five hundred forty-seven million, nine hundred eighty-eight thousand, seven hundred twenty".