276378900173 has 2 divisors, whose sum is σ = 276378900174. Its totient is φ = 276378900172.

The previous prime is 276378900151. The next prime is 276378900331. The reversal of 276378900173 is 371009873672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171650290249 + 104728609924 = 414307^2 + 323618^2 .

It is a cyclic number.

It is not a de Polignac number, because 276378900173 - 2²⁶ = 276311791309 is a prime.

It is a super-3 number, since 3×276378900173³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276378908173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138189450086 + 138189450087.

It is an arithmetic number, because the mean of its divisors is an integer number (138189450087).

Almost surely, 2^276378900173 is an apocalyptic number.

It is an amenable number.

276378900173 is a deficient number, since it is larger than the sum of its proper divisors (1).

276378900173 is an equidigital number, since it uses as much as digits as its factorization.

276378900173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 276378900173 in words is "two hundred seventy-six billion, three hundred seventy-eight million, nine hundred thousand, one hundred seventy-three".