1088772778801 has 4 divisors (see below), whose sum is σ = 1101006180900. Its totient is φ = 1076539376704.

The previous prime is 1088772778787. The next prime is 1088772778813.

1088772778801 is nontrivially palindromic in base 10.

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 136149930225 + 952622848576 = 368985^2 + 976024^2 .

It is a cyclic number.

It is not a de Polignac number, because 1088772778801 - 2²⁵ = 1088739224369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088772778001) 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, 6116700916 + ... + 6116701093.

It is an arithmetic number, because the mean of its divisors is an integer number (275251545225).

Almost surely, 2^{1088772778801} is an apocalyptic number.

It is an amenable number.

1088772778801 is a deficient number, since it is larger than the sum of its proper divisors (12233402099).

1088772778801 is an equidigital number, since it uses as much as digits as its factorization.

1088772778801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12233402098.

The product of its (nonzero) digits is 19668992, while the sum is 64.

The spelling of 1088772778801 in words is "one trillion, eighty-eight billion, seven hundred seventy-two million, seven hundred seventy-eight thousand, eight hundred one".