219048144277 has 2 divisors, whose sum is σ = 219048144278. Its totient is φ = 219048144276.

The previous prime is 219048144247. The next prime is 219048144283. The reversal of 219048144277 is 772441840912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215866168996 + 3181975281 = 464614^2 + 56409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219048144277 is a prime.

It is a super-2 number, since 2×219048144277² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 219048144277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219048144247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109524072138 + 109524072139.

It is an arithmetic number, because the mean of its divisors is an integer number (109524072139).

Almost surely, 2^219048144277 is an apocalyptic number.

It is an amenable number.

219048144277 is a deficient number, since it is larger than the sum of its proper divisors (1).

219048144277 is an equidigital number, since it uses as much as digits as its factorization.

219048144277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 219048144277 in words is "two hundred nineteen billion, forty-eight million, one hundred forty-four thousand, two hundred seventy-seven".