7127798445 has 16 divisors (see below), whose sum is σ = 12671641920. Its totient is φ = 3801492432.

The previous prime is 7127798443. The next prime is 7127798459. The reversal of 7127798445 is 5448977217.

7127798445 is a `hidden beast` number, since 7 + 127 + 79 + 8 + 445 = 666.

It is not a de Polignac number, because 7127798445 - 2¹ = 7127798443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7127798391 and 7127798400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7127798441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26399119 + ... + 26399388.

It is an arithmetic number, because the mean of its divisors is an integer number (791977620).

Almost surely, 2^7127798445 is an apocalyptic number.

It is an amenable number.

7127798445 is a deficient number, since it is larger than the sum of its proper divisors (5543843475).

7127798445 is a wasteful number, since it uses less digits than its factorization.

7127798445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52798521 (or 52798515 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 54.

The square root of 7127798445 is about 84426.2900108728. The cubic root of 7127798445 is about 1924.5024582479.

The spelling of 7127798445 in words is "seven billion, one hundred twenty-seven million, seven hundred ninety-eight thousand, four hundred forty-five".