7127879845 has 8 divisors (see below), whose sum is σ = 8555592600. Its totient is φ = 5700879360.

The previous prime is 7127879839. The next prime is 7127879861. The reversal of 7127879845 is 5489787217.

7127879845 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1092765249 + 6035114596 = 33057^2 + 77686^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7127879845 - 2²¹ = 7125782693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7127879845.

It is a congruent number.

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, 155796 + ... + 196285.

It is an arithmetic number, because the mean of its divisors is an integer number (1069449075).

Almost surely, 2^7127879845 is an apocalyptic number.

It is an amenable number.

7127879845 is a deficient number, since it is larger than the sum of its proper divisors (1427712755).

7127879845 is a wasteful number, since it uses less digits than its factorization.

7127879845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356135.

The product of its digits is 7902720, while the sum is 58.

The square root of 7127879845 is about 84426.7720868209. The cubic root of 7127879845 is about 1924.5097842081.

The spelling of 7127879845 in words is "seven billion, one hundred twenty-seven million, eight hundred seventy-nine thousand, eight hundred forty-five".