5194289664 has 120 divisors (see below), whose sum is σ = 15020262972. Its totient is φ = 1728061440.

The previous prime is 5194289623. The next prime is 5194289671. The reversal of 5194289664 is 4669824915.

5194289664 is a `hidden beast` number, since 519 + 42 + 89 + 6 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4944902400 + 249387264 = 70320^2 + 15792^2 .

It is a super-2 number, since 2×5194289664² = 53961290227074465792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5194289664.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3782482 + ... + 3783854.

Almost surely, 2^5194289664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5194289664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7510131486).

5194289664 is an abundant number, since it is smaller than the sum of its proper divisors (9825973308).

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

5194289664 is a wasteful number, since it uses less digits than its factorization.

5194289664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2199 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 5194289664 is about 72071.4205770914. The cubic root of 5194289664 is about 1731.8438096419.

The spelling of 5194289664 in words is "five billion, one hundred ninety-four million, two hundred eighty-nine thousand, six hundred sixty-four".