7172120544 has 96 divisors (see below), whose sum is σ = 19894533120. Its totient is φ = 2257761792.

The previous prime is 7172120519. The next prime is 7172120563. The reversal of 7172120544 is 4450212717.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

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, 153874 + ... + 194990.

It is an arithmetic number, because the mean of its divisors is an integer number (207234720).

Almost surely, 2^7172120544 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 7172120544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9947266560).

7172120544 is an abundant number, since it is smaller than the sum of its proper divisors (12722412576).

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

7172120544 is a wasteful number, since it uses less digits than its factorization.

7172120544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41232 (or 41224 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7172120544 is about 84688.3731335063. The cubic root of 7172120544 is about 1928.4832010307.

The spelling of 7172120544 in words is "seven billion, one hundred seventy-two million, one hundred twenty thousand, five hundred forty-four".