18950419925064 has 80 divisors (see below), whose sum is σ = 53081147473200. Its totient is φ = 6316518047328.

The previous prime is 18950419924999. The next prime is 18950419925069. The reversal of 18950419925064 is 46052991405981.

18950419925064 is a `hidden beast` number, since 1 + 8 + 9 + 504 + 19 + 9 + 2 + 50 + 64 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18950419924992 and 18950419925010.

It is not an unprimeable number, because it can be changed into a prime (18950419925069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13766919 + ... + 15080745.

It is an arithmetic number, because the mean of its divisors is an integer number (663514343415).

Almost surely, 2^{18950419925064} is an apocalyptic number.

It is an amenable number.

18950419925064 is an abundant number, since it is smaller than the sum of its proper divisors (34130727548136).

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

18950419925064 is a wasteful number, since it uses less digits than its factorization.

18950419925064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336104 (or 1336091 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 18950419925064 in words is "eighteen trillion, nine hundred fifty billion, four hundred nineteen million, nine hundred twenty-five thousand, sixty-four".