6172249860 has 144 divisors (see below), whose sum is σ = 21525993216. Its totient is φ = 1402304256.

The previous prime is 6172249849. The next prime is 6172249873. The reversal of 6172249860 is 689422716.

It is a happy number.

6172249860 is a `hidden beast` number, since 617 + 2 + 24 + 9 + 8 + 6 + 0 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195754 + ... + 225086.

It is an arithmetic number, because the mean of its divisors is an integer number (149486064).

Almost surely, 2^6172249860 is an apocalyptic number.

6172249860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6172249860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10762996608).

6172249860 is an abundant number, since it is smaller than the sum of its proper divisors (15353743356).

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

6172249860 is a wasteful number, since it uses less digits than its factorization.

6172249860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29522 (or 29517 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 6172249860 is about 78563.6675569566. The cubic root of 6172249860 is about 1834.3456162408.

The spelling of 6172249860 in words is "six billion, one hundred seventy-two million, two hundred forty-nine thousand, eight hundred sixty".