8861775401 has 4 divisors (see below), whose sum is σ = 8862099204. Its totient is φ = 8861451600.

The previous prime is 8861775343. The next prime is 8861775491. The reversal of 8861775401 is 1045771688.

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 6248112025 + 2613663376 = 79045^2 + 51124^2 .

It is a cyclic number.

It is not a de Polignac number, because 8861775401 - 2¹⁸ = 8861513257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8861775491) 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, 116630 + ... + 176991.

It is an arithmetic number, because the mean of its divisors is an integer number (2215524801).

Almost surely, 2^8861775401 is an apocalyptic number.

It is an amenable number.

8861775401 is a deficient number, since it is larger than the sum of its proper divisors (323803).

8861775401 is a wasteful number, since it uses less digits than its factorization.

8861775401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323802.

The product of its (nonzero) digits is 376320, while the sum is 47.

The square root of 8861775401 is about 94137.0033568097. The cubic root of 8861775401 is about 2069.3799944045.

The spelling of 8861775401 in words is "eight billion, eight hundred sixty-one million, seven hundred seventy-five thousand, four hundred one".