5149818520 has 128 divisors (see below), whose sum is σ = 15206745600. Its totient is φ = 1520640000.

The previous prime is 5149818467. The next prime is 5149818559. The reversal of 5149818520 is 258189415.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14520 + ... + 102520.

It is an arithmetic number, because the mean of its divisors is an integer number (118802700).

Almost surely, 2^5149818520 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 5149818520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7603372800).

5149818520 is an abundant number, since it is smaller than the sum of its proper divisors (10056927080).

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

5149818520 is a wasteful number, since it uses less digits than its factorization.

5149818520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88049 (or 88045 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 43.

The square root of 5149818520 is about 71762.2360298228. The cubic root of 5149818520 is about 1726.8872177605.

The spelling of 5149818520 in words is "five billion, one hundred forty-nine million, eight hundred eighteen thousand, five hundred twenty".