7050720639 has 4 divisors (see below), whose sum is σ = 9400960856. Its totient is φ = 4700480424.

The previous prime is 7050720619. The next prime is 7050720653. The reversal of 7050720639 is 9360270507.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7050720639 - 2¹⁶ = 7050655103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7050720597 and 7050720606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7050720619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175120104 + ... + 1175120109.

It is an arithmetic number, because the mean of its divisors is an integer number (2350240214).

Almost surely, 2^7050720639 is an apocalyptic number.

7050720639 is a deficient number, since it is larger than the sum of its proper divisors (2350240217).

7050720639 is a wasteful number, since it uses less digits than its factorization.

7050720639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350240216.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 7050720639 is about 83968.5693518712. The cubic root of 7050720639 is about 1917.5403108248.

The spelling of 7050720639 in words is "seven billion, fifty million, seven hundred twenty thousand, six hundred thirty-nine".