30636742667 has 2 divisors, whose sum is σ = 30636742668. Its totient is φ = 30636742666.

The previous prime is 30636742639. The next prime is 30636742699. The reversal of 30636742667 is 76624763603.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30636742667 - 2¹⁶ = 30636677131 is a prime.

It is a super-2 number, since 2×30636742667² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30636742867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15318371333 + 15318371334.

It is an arithmetic number, because the mean of its divisors is an integer number (15318371334).

Almost surely, 2^30636742667 is an apocalyptic number.

30636742667 is a deficient number, since it is larger than the sum of its proper divisors (1).

30636742667 is an equidigital number, since it uses as much as digits as its factorization.

30636742667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 50.

The spelling of 30636742667 in words is "thirty billion, six hundred thirty-six million, seven hundred forty-two thousand, six hundred sixty-seven".