18628719060459 has 16 divisors (see below), whose sum is σ = 24854664391200. Its totient is φ = 12410961927936.

The previous prime is 18628719060439. The next prime is 18628719060463. The reversal of 18628719060459 is 95406091782681.

It is not a de Polignac number, because 18628719060459 - 2¹³ = 18628719052267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18628719060459.

It is not an unprimeable number, because it can be changed into a prime (18628719060409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36812437 + ... + 37315049.

It is an arithmetic number, because the mean of its divisors is an integer number (1553416524450).

Almost surely, 2^{18628719060459} is an apocalyptic number.

18628719060459 is a deficient number, since it is larger than the sum of its proper divisors (6225945330741).

18628719060459 is a wasteful number, since it uses less digits than its factorization.

18628719060459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510734.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 18628719060459 in words is "eighteen trillion, six hundred twenty-eight billion, seven hundred nineteen million, sixty thousand, four hundred fifty-nine".