5132391264 has 576 divisors, whose sum is σ = 20649807360. Its totient is φ = 1164533760.

The previous prime is 5132391181. The next prime is 5132391287. The reversal of 5132391264 is 4621932315.

5132391264 is a `hidden beast` number, since 5 + 1 + 3 + 2 + 391 + 264 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5477004 + ... + 5477940.

It is an arithmetic number, because the mean of its divisors is an integer number (35850360).

Almost surely, 2^5132391264 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 5132391264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10324903680).

5132391264 is an abundant number, since it is smaller than the sum of its proper divisors (15517416096).

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

5132391264 is a wasteful number, since it uses less digits than its factorization.

5132391264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 992 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 5132391264 is about 71640.7095442249. The cubic root of 5132391264 is about 1724.9370573127.

The spelling of 5132391264 in words is "five billion, one hundred thirty-two million, three hundred ninety-one thousand, two hundred sixty-four".