2956880081 has 4 divisors (see below), whose sum is σ = 2957051700. Its totient is φ = 2956708464.

The previous prime is 2956880077. The next prime is 2956880093. The reversal of 2956880081 is 1800886592.

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 474847681 + 2482032400 = 21791^2 + 49820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2956880081 - 2² = 2956880077 is a prime.

It is a super-2 number, since 2×2956880081² = 17486279626829133122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2956880041) 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, 56666 + ... + 95523.

It is an arithmetic number, because the mean of its divisors is an integer number (739262925).

Almost surely, 2^2956880081 is an apocalyptic number.

It is an amenable number.

2956880081 is a deficient number, since it is larger than the sum of its proper divisors (171619).

2956880081 is a wasteful number, since it uses less digits than its factorization.

2956880081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171618.

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 2956880081 is about 54377.2018496723. The cubic root of 2956880081 is about 1435.3062320787.

The spelling of 2956880081 in words is "two billion, nine hundred fifty-six million, eight hundred eighty thousand, eighty-one".