2772170461 has 2 divisors, whose sum is σ = 2772170462. Its totient is φ = 2772170460.

The previous prime is 2772170447. The next prime is 2772170549. The reversal of 2772170461 is 1640712772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1544018436 + 1228152025 = 39294^2 + 35045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2772170461 - 2²¹ = 2770073309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2772170461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2772170411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386085230 + 1386085231.

It is an arithmetic number, because the mean of its divisors is an integer number (1386085231).

Almost surely, 2^2772170461 is an apocalyptic number.

It is an amenable number.

2772170461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2772170461 is an equidigital number, since it uses as much as digits as its factorization.

2772170461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 2772170461 is about 52651.4051189520. The cubic root of 2772170461 is about 1404.7745928334.

The spelling of 2772170461 in words is "two billion, seven hundred seventy-two million, one hundred seventy thousand, four hundred sixty-one".