7120345456 has 80 divisors (see below), whose sum is σ = 16618658560. Its totient is φ = 2887073280.

The previous prime is 7120345423. The next prime is 7120345459. The reversal of 7120345456 is 6545430217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7120345459) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1992151 + ... + 1995721.

It is an arithmetic number, because the mean of its divisors is an integer number (207733232).

Almost surely, 2^7120345456 is an apocalyptic number.

7120345456 is a gapful number since it is divisible by the number (76) 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 7120345456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8309329280).

7120345456 is an abundant number, since it is smaller than the sum of its proper divisors (9498313104).

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

7120345456 is a wasteful number, since it uses less digits than its factorization.

7120345456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 7120345456 is about 84382.1394372055. The cubic root of 7120345456 is about 1923.8314564000.

The spelling of 7120345456 in words is "seven billion, one hundred twenty million, three hundred forty-five thousand, four hundred fifty-six".