2872158761 has 2 divisors, whose sum is σ = 2872158762. Its totient is φ = 2872158760.

The previous prime is 2872158749. The next prime is 2872158847. The reversal of 2872158761 is 1678512782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2524560025 + 347598736 = 50245^2 + 18644^2 .

It is a cyclic number.

It is not a de Polignac number, because 2872158761 - 2⁶ = 2872158697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2872158701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1436079380 + 1436079381.

It is an arithmetic number, because the mean of its divisors is an integer number (1436079381).

Almost surely, 2^2872158761 is an apocalyptic number.

It is an amenable number.

2872158761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2872158761 is an equidigital number, since it uses as much as digits as its factorization.

2872158761 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2872158761 is about 53592.5252344019. The cubic root of 2872158761 is about 1421.4649236083.

The spelling of 2872158761 in words is "two billion, eight hundred seventy-two million, one hundred fifty-eight thousand, seven hundred sixty-one".