2519839494 has 24 divisors (see below), whose sum is σ = 5493153432. Its totient is φ = 834792480.

The previous prime is 2519839471. The next prime is 2519839499. The reversal of 2519839494 is 4949389152.

2519839494 is a `hidden beast` number, since 2 + 519 + 8 + 39 + 4 + 94 = 666.

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 2519839494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2519839499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426487 + ... + 432354.

It is an arithmetic number, because the mean of its divisors is an integer number (228881393).

Almost surely, 2^2519839494 is an apocalyptic number.

2519839494 is an abundant number, since it is smaller than the sum of its proper divisors (2973313938).

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

2519839494 is a wasteful number, since it uses less digits than its factorization.

2519839494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859012 (or 859009 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 2519839494 is about 50198.0028885612. The cubic root of 2519839494 is about 1360.7895311061.

The spelling of 2519839494 in words is "two billion, five hundred nineteen million, eight hundred thirty-nine thousand, four hundred ninety-four".