7071772720 has 40 divisors (see below), whose sum is σ = 16458165360. Its totient is φ = 2825905920.

The previous prime is 7071772711. The next prime is 7071772739. The reversal of 7071772720 is 272771707.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38391 + ... + 124969.

It is an arithmetic number, because the mean of its divisors is an integer number (411454134).

Almost surely, 2^7071772720 is an apocalyptic number.

It is an amenable number.

7071772720 is an abundant number, since it is smaller than the sum of its proper divisors (9386392640).

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

7071772720 is a wasteful number, since it uses less digits than its factorization.

7071772720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87613 (or 87607 counting only the distinct ones).

The product of its (nonzero) digits is 67228, while the sum is 40.

The square root of 7071772720 is about 84093.8328297623. The cubic root of 7071772720 is about 1919.4468820491.

The spelling of 7071772720 in words is "seven billion, seventy-one million, seven hundred seventy-two thousand, seven hundred twenty".