19890214182 has 48 divisors (see below), whose sum is σ = 45465030000. Its totient is φ = 6267082752.

The previous prime is 19890214181. The next prime is 19890214187. The reversal of 19890214182 is 28141209891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19890214181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88794 + ... + 218322.

It is an arithmetic number, because the mean of its divisors is an integer number (947188125).

Almost surely, 2^19890214182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19890214182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22732515000).

19890214182 is an abundant number, since it is smaller than the sum of its proper divisors (25574815818).

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

19890214182 is a wasteful number, since it uses less digits than its factorization.

19890214182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130005 (or 130002 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 19890214182 in words is "nineteen billion, eight hundred ninety million, two hundred fourteen thousand, one hundred eighty-two".