5187169920 has 128 divisors (see below), whose sum is σ = 16554795840. Its totient is φ = 1381515264.

The previous prime is 5187169873. The next prime is 5187169987. The reversal of 5187169920 is 299617815.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 5187169920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2489199 + ... + 2491281.

Almost surely, 2^5187169920 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 5187169920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8277397920).

5187169920 is an abundant number, since it is smaller than the sum of its proper divisors (11367625920).

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

5187169920 is a wasteful number, since it uses less digits than its factorization.

5187169920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 5187169920 is about 72022.0099691754. The cubic root of 5187169920 is about 1731.0521760521.

The spelling of 5187169920 in words is "five billion, one hundred eighty-seven million, one hundred sixty-nine thousand, nine hundred twenty".