2119474518 has 64 divisors (see below), whose sum is σ = 5158425600. Its totient is φ = 579222336.

The previous prime is 2119474517. The next prime is 2119474519. The reversal of 2119474518 is 8154749112.

It is an interprime number because it is at equal distance from previous prime (2119474517) and next prime (2119474519).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2119474518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119474517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24946 + ... + 69722.

It is an arithmetic number, because the mean of its divisors is an integer number (80600400).

Almost surely, 2^2119474518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2119474518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2579212800).

2119474518 is an abundant number, since it is smaller than the sum of its proper divisors (3038951082).

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

2119474518 is a wasteful number, since it uses less digits than its factorization.

2119474518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44826 (or 44812 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 2119474518 is about 46037.7510093619. The cubic root of 2119474518 is about 1284.5255088768.

The spelling of 2119474518 in words is "two billion, one hundred nineteen million, four hundred seventy-four thousand, five hundred eighteen".