1088356135681 has 4 divisors (see below), whose sum is σ = 1088387732272. Its totient is φ = 1088324539092.

The previous prime is 1088356135639. The next prime is 1088356135693. The reversal of 1088356135681 is 1865316538801.

1088356135681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1088356135681 - 2²¹ = 1088354038529 is a prime.

It is a super-2 number, since 2×1088356135681² (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 (1088356435681) 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, 15746571 + ... + 15815536.

It is an arithmetic number, because the mean of its divisors is an integer number (272096933068).

Almost surely, 2^{1088356135681} is an apocalyptic number.

It is an amenable number.

1088356135681 is a deficient number, since it is larger than the sum of its proper divisors (31596591).

1088356135681 is an equidigital number, since it uses as much as digits as its factorization.

1088356135681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31596590.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 1088356135681 in words is "one trillion, eighty-eight billion, three hundred fifty-six million, one hundred thirty-five thousand, six hundred eighty-one".