7120007999 has 16 divisors (see below), whose sum is σ = 7723900800. Its totient is φ = 6524275296.

The previous prime is 7120007989. The next prime is 7120008019. The reversal of 7120007999 is 9997000217.

It is a cyclic number.

It is not a de Polignac number, because 7120007999 - 2¹⁶ = 7119942463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7120007929) 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, 1531172 + ... + 1535814.

It is an arithmetic number, because the mean of its divisors is an integer number (482743800).

Almost surely, 2^7120007999 is an apocalyptic number.

7120007999 is a deficient number, since it is larger than the sum of its proper divisors (603892801).

7120007999 is a wasteful number, since it uses less digits than its factorization.

7120007999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 7120007999 is about 84380.1398375234. The cubic root of 7120007999 is about 1923.8010636495.

The spelling of 7120007999 in words is "seven billion, one hundred twenty million, seven thousand, nine hundred ninety-nine".