7172879550 has 96 divisors (see below), whose sum is σ = 18257581440. Its totient is φ = 1862889600.

The previous prime is 7172879507. The next prime is 7172879557. The reversal of 7172879550 is 559782717.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7172879493 and 7172879502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7172879557) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1101805 + ... + 1108295.

It is an arithmetic number, because the mean of its divisors is an integer number (190183140).

Almost surely, 2^7172879550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7172879550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9128790720).

7172879550 is an abundant number, since it is smaller than the sum of its proper divisors (11084701890).

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

7172879550 is a wasteful number, since it uses less digits than its factorization.

7172879550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6698 (or 6693 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 51.

The square root of 7172879550 is about 84692.8541849901. The cubic root of 7172879550 is about 1928.5512273408.

The spelling of 7172879550 in words is "seven billion, one hundred seventy-two million, eight hundred seventy-nine thousand, five hundred fifty".