18964516914189 has 96 divisors (see below), whose sum is σ = 35578517345280. Its totient is φ = 9448505683200.

The previous prime is 18964516914179. The next prime is 18964516914197. The reversal of 18964516914189 is 98141961546981.

18964516914189 is a `hidden beast` number, since 1 + 8 + 9 + 6 + 4 + 516 + 91 + 4 + 18 + 9 = 666.

It is not a de Polignac number, because 18964516914189 - 2⁸ = 18964516913933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18964516914149) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3980067 + ... + 7332800.

It is an arithmetic number, because the mean of its divisors is an integer number (370609555680).

Almost surely, 2^{18964516914189} is an apocalyptic number.

It is an amenable number.

18964516914189 is a deficient number, since it is larger than the sum of its proper divisors (16614000431091).

18964516914189 is a wasteful number, since it uses less digits than its factorization.

18964516914189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11312991 (or 11312988 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 72.

The spelling of 18964516914189 in words is "eighteen trillion, nine hundred sixty-four billion, five hundred sixteen million, nine hundred fourteen thousand, one hundred eighty-nine".