5172879780 has 48 divisors (see below), whose sum is σ = 16093405440. Its totient is φ = 1379434464.

The previous prime is 5172879779. The next prime is 5172879823. The reversal of 5172879780 is 879782715.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 4789164 + ... + 4790243.

It is an arithmetic number, because the mean of its divisors is an integer number (335279280).

Almost surely, 2^5172879780 is an apocalyptic number.

It is an amenable number.

5172879780 is an abundant number, since it is smaller than the sum of its proper divisors (10920525660).

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

5172879780 is a wasteful number, since it uses less digits than its factorization.

5172879780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579425 (or 9579417 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The square root of 5172879780 is about 71922.7347922755. The cubic root of 5172879780 is about 1729.4610882250.

The spelling of 5172879780 in words is "five billion, one hundred seventy-two million, eight hundred seventy-nine thousand, seven hundred eighty".