5172492780 has 288 divisors, whose sum is σ = 19978358400. Its totient is φ = 1053609984.

The previous prime is 5172492779. The next prime is 5172492827. The reversal of 5172492780 is 872942715.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 469576 + ... + 480464.

It is an arithmetic number, because the mean of its divisors is an integer number (69369300).

Almost surely, 2^5172492780 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 5172492780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9989179200).

5172492780 is an abundant number, since it is smaller than the sum of its proper divisors (14805865620).

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

5172492780 is a wasteful number, since it uses less digits than its factorization.

5172492780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10953 (or 10948 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 5172492780 is about 71920.0443548250. The cubic root of 5172492780 is about 1729.4179582754.

The spelling of 5172492780 in words is "five billion, one hundred seventy-two million, four hundred ninety-two thousand, seven hundred eighty".