10811338578 has 12 divisors (see below), whose sum is σ = 23424566958. Its totient is φ = 3603779520.

The previous prime is 10811338541. The next prime is 10811338583. The reversal of 10811338578 is 87583311801.

It can be written as a sum of positive squares in only one way, i.e., 9730441449 + 1080897129 = 98643^2 + 32877^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300314943 + ... + 300314978.

Almost surely, 2^10811338578 is an apocalyptic number.

10811338578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10811338578 is an abundant number, since it is smaller than the sum of its proper divisors (12613228380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10811338578 is a wasteful number, since it uses less digits than its factorization.

10811338578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600629929 (or 600629926 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 10811338578 in words is "ten billion, eight hundred eleven million, three hundred thirty-eight thousand, five hundred seventy-eight".