18878093161671 has 8 divisors (see below), whose sum is σ = 25331114391664. Its totient is φ = 12505233686400.

The previous prime is 18878093161639. The next prime is 18878093161673. The reversal of 18878093161671 is 17616139087881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18878093161671 - 2⁵ = 18878093161639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18878093161673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20040438130 + ... + 20040439071.

It is an arithmetic number, because the mean of its divisors is an integer number (3166389298958).

Almost surely, 2^{18878093161671} is an apocalyptic number.

18878093161671 is a deficient number, since it is larger than the sum of its proper divisors (6453021229993).

18878093161671 is a wasteful number, since it uses less digits than its factorization.

18878093161671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40080877361.

The product of its (nonzero) digits is 24385536, while the sum is 66.

The spelling of 18878093161671 in words is "eighteen trillion, eight hundred seventy-eight billion, ninety-three million, one hundred sixty-one thousand, six hundred seventy-one".