276063639431 has 2 divisors, whose sum is σ = 276063639432. Its totient is φ = 276063639430.

The previous prime is 276063639361. The next prime is 276063639457. The reversal of 276063639431 is 134936360672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 276063639431 - 2²² = 276059445127 is a prime.

It is a super-2 number, since 2×276063639431² (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 276063639431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276063633431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138031819715 + 138031819716.

It is an arithmetic number, because the mean of its divisors is an integer number (138031819716).

Almost surely, 2^276063639431 is an apocalyptic number.

276063639431 is a deficient number, since it is larger than the sum of its proper divisors (1).

276063639431 is an equidigital number, since it uses as much as digits as its factorization.

276063639431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 50.

The spelling of 276063639431 in words is "two hundred seventy-six billion, sixty-three million, six hundred thirty-nine thousand, four hundred thirty-one".