276276499987 has 2 divisors, whose sum is σ = 276276499988. Its totient is φ = 276276499986.

The previous prime is 276276499963. The next prime is 276276500023. The reversal of 276276499987 is 789994672672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 276276499987 - 2¹⁵ = 276276467219 is a prime.

It is a super-2 number, since 2×276276499987² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (276276409987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138138249993 + 138138249994.

It is an arithmetic number, because the mean of its divisors is an integer number (138138249994).

Almost surely, 2^276276499987 is an apocalyptic number.

276276499987 is a deficient number, since it is larger than the sum of its proper divisors (1).

276276499987 is an equidigital number, since it uses as much as digits as its factorization.

276276499987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152216576, while the sum is 76.

The spelling of 276276499987 in words is "two hundred seventy-six billion, two hundred seventy-six million, four hundred ninety-nine thousand, nine hundred eighty-seven".