2272798777 has 2 divisors, whose sum is σ = 2272798778. Its totient is φ = 2272798776.

The previous prime is 2272798771. The next prime is 2272798789. The reversal of 2272798777 is 7778972722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2040419241 + 232379536 = 45171^2 + 15244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272798777 - 2³¹ = 125315129 is a prime.

It is a super-2 number, since 2×2272798777² = 10331228561465391458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2272798771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136399388 + 1136399389.

It is an arithmetic number, because the mean of its divisors is an integer number (1136399389).

Almost surely, 2^2272798777 is an apocalyptic number.

It is an amenable number.

2272798777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272798777 is an equidigital number, since it uses as much as digits as its factorization.

2272798777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9680832, while the sum is 58.

The square root of 2272798777 is about 47673.8793995202. The cubic root of 2272798777 is about 1314.7817353772.

The spelling of 2272798777 in words is "two billion, two hundred seventy-two million, seven hundred ninety-eight thousand, seven hundred seventy-seven".