2831246561 has 8 divisors (see below), whose sum is σ = 3326219904. Its totient is φ = 2375871120.

The previous prime is 2831246557. The next prime is 2831246567. The reversal of 2831246561 is 1656421382.

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 2831246561 - 2² = 2831246557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2831246567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9899321 + ... + 9899606.

It is an arithmetic number, because the mean of its divisors is an integer number (415777488).

Almost surely, 2^2831246561 is an apocalyptic number.

It is an amenable number.

2831246561 is a deficient number, since it is larger than the sum of its proper divisors (494973343).

2831246561 is a wasteful number, since it uses less digits than its factorization.

2831246561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19798951.

The product of its digits is 69120, while the sum is 38.

The square root of 2831246561 is about 53209.4593188091. The cubic root of 2831246561 is about 1414.6833123644.

The spelling of 2831246561 in words is "two billion, eight hundred thirty-one million, two hundred forty-six thousand, five hundred sixty-one".