18895487846040 has 192 divisors, whose sum is σ = 66136697303040. Its totient is φ = 4651021900800.

The previous prime is 18895487846009. The next prime is 18895487846069. The reversal of 18895487846040 is 4064878459881.

It is a happy number.

18895487846040 is a `hidden beast` number, since 1 + 8 + 8 + 9 + 5 + 4 + 8 + 7 + 8 + 4 + 604 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 18895487846040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160479190 + ... + 160596890.

It is an arithmetic number, because the mean of its divisors is an integer number (344461965120).

Almost surely, 2^{18895487846040} is an apocalyptic number.

18895487846040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18895487846040 is an abundant number, since it is smaller than the sum of its proper divisors (47241209457000).

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

18895487846040 is a wasteful number, since it uses less digits than its factorization.

18895487846040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152034 (or 152027 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 72.

The spelling of 18895487846040 in words is "eighteen trillion, eight hundred ninety-five billion, four hundred eighty-seven million, eight hundred forty-six thousand, forty".