2862120961 has 4 divisors (see below), whose sum is σ = 3270995392. Its totient is φ = 2453246532.

The previous prime is 2862120949. The next prime is 2862120967. The reversal of 2862120961 is 1690212682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1690212682 = 2 ⋅845106341.

It is a cyclic number.

It is not a de Polignac number, because 2862120961 - 2⁹ = 2862120449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2862120961.

It is not an unprimeable number, because it can be changed into a prime (2862120967) 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, 204437205 + ... + 204437218.

It is an arithmetic number, because the mean of its divisors is an integer number (817748848).

Almost surely, 2^2862120961 is an apocalyptic number.

It is an amenable number.

2862120961 is a deficient number, since it is larger than the sum of its proper divisors (408874431).

2862120961 is an equidigital number, since it uses as much as digits as its factorization.

2862120961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408874430.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2862120961 is about 53498.7940144448. The cubic root of 2862120961 is about 1419.8070492639.

The spelling of 2862120961 in words is "two billion, eight hundred sixty-two million, one hundred twenty thousand, nine hundred sixty-one".