1093128093857 has 4 divisors (see below), whose sum is σ = 1093201983636. Its totient is φ = 1093054204080.

The previous prime is 1093128093847. The next prime is 1093128093899. The reversal of 1093128093857 is 7583908213901.

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 584301244816 + 508826849041 = 764396^2 + 713321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1093128093857 - 2³⁶ = 1024408617121 is a prime.

It is a super-2 number, since 2×1093128093857² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1093128093847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36922694 + ... + 36952287.

It is an arithmetic number, because the mean of its divisors is an integer number (273300495909).

Almost surely, 2^{1093128093857} is an apocalyptic number.

It is an amenable number.

1093128093857 is a deficient number, since it is larger than the sum of its proper divisors (73889779).

1093128093857 is an equidigital number, since it uses as much as digits as its factorization.

1093128093857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73889778.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 1093128093857 in words is "one trillion, ninety-three billion, one hundred twenty-eight million, ninety-three thousand, eight hundred fifty-seven".