18052048120477 has 32 divisors (see below), whose sum is σ = 21235168604160. Its totient is φ = 15023768772480.

The previous prime is 18052048120459. The next prime is 18052048120517. The reversal of 18052048120477 is 77402184025081.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18052048120477 - 2¹⁵ = 18052048087709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18052048120477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052048121477) 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, 51651438 + ... + 51999760.

It is an arithmetic number, because the mean of its divisors is an integer number (663599018880).

Almost surely, 2^{18052048120477} is an apocalyptic number.

It is an amenable number.

18052048120477 is a deficient number, since it is larger than the sum of its proper divisors (3183120483683).

18052048120477 is a wasteful number, since it uses less digits than its factorization.

18052048120477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349233.

The product of its (nonzero) digits is 1003520, while the sum is 49.

The spelling of 18052048120477 in words is "eighteen trillion, fifty-two billion, forty-eight million, one hundred twenty thousand, four hundred seventy-seven".