8028377785 has 8 divisors (see below), whose sum is σ = 9651864456. Its totient is φ = 6410828160.

The previous prime is 8028377761. The next prime is 8028377849. The reversal of 8028377785 is 5877738208.

It can be written as a sum of positive squares in 4 ways, for example, as 2547216 + 8025830569 = 1596^2 + 89587^2 .

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

It is not a de Polignac number, because 8028377785 - 2⁷ = 8028377657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481284 + ... + 1486693.

It is an arithmetic number, because the mean of its divisors is an integer number (1206483057).

Almost surely, 2^8028377785 is an apocalyptic number.

It is an amenable number.

8028377785 is a deficient number, since it is larger than the sum of its proper divisors (1623486671).

8028377785 is a wasteful number, since it uses less digits than its factorization.

8028377785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968523.

The product of its (nonzero) digits is 5268480, while the sum is 55.

The square root of 8028377785 is about 89601.2153098383. The cubic root of 8028377785 is about 2002.3620247381.

The spelling of 8028377785 in words is "eight billion, twenty-eight million, three hundred seventy-seven thousand, seven hundred eighty-five".