8128550445 has 16 divisors (see below), whose sum is σ = 13100616000. Its totient is φ = 4303581824.

The previous prime is 8128550431. The next prime is 8128550471. The reversal of 8128550445 is 5440558218.

It is a cyclic number.

It is not a de Polignac number, because 8128550445 - 2⁴ = 8128550429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8128550397 and 8128550406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975695 + ... + 1979804.

It is an arithmetic number, because the mean of its divisors is an integer number (818788500).

Almost surely, 2^8128550445 is an apocalyptic number.

It is an amenable number.

8128550445 is a deficient number, since it is larger than the sum of its proper divisors (4972065555).

8128550445 is a wasteful number, since it uses less digits than its factorization.

8128550445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955644.

The product of its (nonzero) digits is 256000, while the sum is 42.

The square root of 8128550445 is about 90158.4740609556. The cubic root of 8128550445 is about 2010.6556646654.

The spelling of 8128550445 in words is "eight billion, one hundred twenty-eight million, five hundred fifty thousand, four hundred forty-five".