8127558045 has 12 divisors (see below), whose sum is σ = 14087767356. Its totient is φ = 4334697600.

The previous prime is 8127558037. The next prime is 8127558059. The reversal of 8127558045 is 5408557218.

8127558045 is a `hidden beast` number, since 8 + 1 + 27 + 5 + 580 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2451141081 + 5676416964 = 49509^2 + 75342^2 .

It is not a de Polignac number, because 8127558045 - 2³ = 8127558037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 180612401 = 8127558045 / (8 + 1 + 2 + 7 + 5 + 5 + 8 + 0 + 4 + 5).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 90306156 + ... + 90306245.

It is an arithmetic number, because the mean of its divisors is an integer number (1173980613).

Almost surely, 2^8127558045 is an apocalyptic number.

It is an amenable number.

8127558045 is a deficient number, since it is larger than the sum of its proper divisors (5960209311).

8127558045 is a wasteful number, since it uses less digits than its factorization.

8127558045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180612412 (or 180612409 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The square root of 8127558045 is about 90152.9702505691. The cubic root of 8127558045 is about 2010.5738355659.

The spelling of 8127558045 in words is "eight billion, one hundred twenty-seven million, five hundred fifty-eight thousand, forty-five".