672277772269 has 2 divisors, whose sum is σ = 672277772270. Its totient is φ = 672277772268.

The previous prime is 672277772213. The next prime is 672277772279. The reversal of 672277772269 is 962277772276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436821855625 + 235455916644 = 660925^2 + 485238^2 .

It is a cyclic number.

It is not a de Polignac number, because 672277772269 - 2³³ = 663687837677 is a prime.

It is a super-2 number, since 2×672277772269² (a number of 24 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 672277772269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672277772279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336138886134 + 336138886135.

It is an arithmetic number, because the mean of its divisors is an integer number (336138886135).

Almost surely, 2^672277772269 is an apocalyptic number.

It is an amenable number.

672277772269 is a deficient number, since it is larger than the sum of its proper divisors (1).

672277772269 is an equidigital number, since it uses as much as digits as its factorization.

672277772269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87127488, while the sum is 64.

The spelling of 672277772269 in words is "six hundred seventy-two billion, two hundred seventy-seven million, seven hundred seventy-two thousand, two hundred sixty-nine".