1367728631 has 2 divisors, whose sum is σ = 1367728632. Its totient is φ = 1367728630.

The previous prime is 1367728577. The next prime is 1367728633. The reversal of 1367728631 is 1368277631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1367728631 - 2¹⁸ = 1367466487 is a prime.

It is a super-2 number, since 2×1367728631² = 3741363216114268322, which contains 22 as substring.

Together with 1367728633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1367728633) 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, 683864315 + 683864316.

It is an arithmetic number, because the mean of its divisors is an integer number (683864316).

Almost surely, 2^1367728631 is an apocalyptic number.

1367728631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1367728631 is an equidigital number, since it uses as much as digits as its factorization.

1367728631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 1367728631 is about 36982.8153471312. The cubic root of 1367728631 is about 1110.0264125414.

The spelling of 1367728631 in words is "one billion, three hundred sixty-seven million, seven hundred twenty-eight thousand, six hundred thirty-one".