1075528778605 has 4 divisors (see below), whose sum is σ = 1290634534332. Its totient is φ = 860423022880.

The previous prime is 1075528778573. The next prime is 1075528778617. The reversal of 1075528778605 is 5068778255701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 235369552201 + 840159226404 = 485149^2 + 916602^2 .

It is not a de Polignac number, because 1075528778605 - 2⁵ = 1075528778573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107552877856 + ... + 107552877865.

It is an arithmetic number, because the mean of its divisors is an integer number (322658633583).

Almost surely, 2^{1075528778605} is an apocalyptic number.

It is an amenable number.

1075528778605 is a deficient number, since it is larger than the sum of its proper divisors (215105755727).

1075528778605 is an equidigital number, since it uses as much as digits as its factorization.

1075528778605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215105755726.

The product of its (nonzero) digits is 32928000, while the sum is 61.

The spelling of 1075528778605 in words is "one trillion, seventy-five billion, five hundred twenty-eight million, seven hundred seventy-eight thousand, six hundred five".