7171072272 has 480 divisors, whose sum is σ = 25882787840. Its totient is φ = 1802787840.

The previous prime is 7171072247. The next prime is 7171072309. The reversal of 7171072272 is 2722701717.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51590379 + ... + 51590517.

Almost surely, 2^7171072272 is an apocalyptic number.

7171072272 is a gapful number since it is divisible by the number (72) 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 7171072272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12941393920).

7171072272 is an abundant number, since it is smaller than the sum of its proper divisors (18711715568).

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

7171072272 is a wasteful number, since it uses less digits than its factorization.

7171072272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

The square root of 7171072272 is about 84682.1839113754. The cubic root of 7171072272 is about 1928.3892412119.

Adding to 7171072272 its reverse (2722701717), we get a palindrome (9893773989).

The spelling of 7171072272 in words is "seven billion, one hundred seventy-one million, seventy-two thousand, two hundred seventy-two".