5261749168 has 20 divisors (see below), whose sum is σ = 10978842448. Its totient is φ = 2428499520.

The previous prime is 5261749121. The next prime is 5261749219. The reversal of 5261749168 is 8619471625.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12648228 + ... + 12648643.

Almost surely, 2^5261749168 is an apocalyptic number.

It is an amenable number.

5261749168 is an abundant number, since it is smaller than the sum of its proper divisors (5717093280).

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

5261749168 is a wasteful number, since it uses less digits than its factorization.

5261749168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25296892 (or 25296886 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The square root of 5261749168 is about 72537.9153822330. The cubic root of 5261749168 is about 1739.3088777687.

The spelling of 5261749168 in words is "five billion, two hundred sixty-one million, seven hundred forty-nine thousand, one hundred sixty-eight".