7120289785 has 16 divisors (see below), whose sum is σ = 9767260800. Its totient is φ = 4881338496.

The previous prime is 7120289779. The next prime is 7120289789. The reversal of 7120289785 is 5879820217.

It is a cyclic number.

It is not a de Polignac number, because 7120289785 - 2²¹ = 7118192633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7120289789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144006 + ... + 187024.

It is an arithmetic number, because the mean of its divisors is an integer number (610453800).

Almost surely, 2^7120289785 is an apocalyptic number.

It is an amenable number.

7120289785 is a deficient number, since it is larger than the sum of its proper divisors (2646971015).

7120289785 is a wasteful number, since it uses less digits than its factorization.

7120289785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47760.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 7120289785 is about 84381.8095622510. The cubic root of 7120289785 is about 1923.8264425094.

The spelling of 7120289785 in words is "seven billion, one hundred twenty million, two hundred eighty-nine thousand, seven hundred eighty-five".