276640162727 has 4 divisors (see below), whose sum is σ = 285564038976. Its totient is φ = 267716286480.

The previous prime is 276640162691. The next prime is 276640162741. The reversal of 276640162727 is 727261046672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 276640162727 - 2¹⁰ = 276640161703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276640162787) 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 in 3 ways as a sum of consecutive naturals, for example, 4461938078 + ... + 4461938139.

It is an arithmetic number, because the mean of its divisors is an integer number (71391009744).

Almost surely, 2^276640162727 is an apocalyptic number.

276640162727 is a deficient number, since it is larger than the sum of its proper divisors (8923876249).

276640162727 is an equidigital number, since it uses as much as digits as its factorization.

276640162727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923876248.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 276640162727 in words is "two hundred seventy-six billion, six hundred forty million, one hundred sixty-two thousand, seven hundred twenty-seven".