18456542079552 has 168 divisors, whose sum is σ = 58088850726816. Its totient is φ = 5790287628288.

The previous prime is 18456542079551. The next prime is 18456542079593. The reversal of 18456542079552 is 25597024565481.

18456542079552 is a `hidden beast` number, since 1 + 8 + 4 + 5 + 6 + 5 + 4 + 2 + 0 + 79 + 552 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18456542079552.

It is not an unprimeable number, because it can be changed into a prime (18456542079551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34640418 + ... + 35169185.

It is an arithmetic number, because the mean of its divisors is an integer number (345766968612).

Almost surely, 2^{18456542079552} is an apocalyptic number.

18456542079552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18456542079552 is an abundant number, since it is smaller than the sum of its proper divisors (39632308647264).

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

18456542079552 is an equidigital number, since it uses as much as digits as its factorization.

18456542079552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69809647 (or 69809625 counting only the distinct ones).

The product of its (nonzero) digits is 120960000, while the sum is 63.

The spelling of 18456542079552 in words is "eighteen trillion, four hundred fifty-six billion, five hundred forty-two million, seventy-nine thousand, five hundred fifty-two".