2863959961 has 8 divisors (see below), whose sum is σ = 3041123400. Its totient is φ = 2687762688.

The previous prime is 2863959947. The next prime is 2863959979. The reversal of 2863959961 is 1699593682.

It can be written as a sum of positive squares in 4 ways, for example, as 1307184025 + 1556775936 = 36155^2 + 39456^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2863959961 - 2²³ = 2855571353 is a prime.

It is a super-2 number, since 2×2863959961² = 16404533316422243042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2863959896 and 2863959905.

It is not an unprimeable number, because it can be changed into a prime (2863959911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235426 + ... + 247291.

It is an arithmetic number, because the mean of its divisors is an integer number (380140425).

Almost surely, 2^2863959961 is an apocalyptic number.

It is an amenable number.

2863959961 is a deficient number, since it is larger than the sum of its proper divisors (177163439).

2863959961 is a wasteful number, since it uses less digits than its factorization.

2863959961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483083.

The product of its digits is 6298560, while the sum is 58.

The square root of 2863959961 is about 53515.9785578102. The cubic root of 2863959961 is about 1420.1110739339. Note that the first 3 decimals are identical.

The spelling of 2863959961 in words is "two billion, eight hundred sixty-three million, nine hundred fifty-nine thousand, nine hundred sixty-one".