30312739867 has 2 divisors, whose sum is σ = 30312739868. Its totient is φ = 30312739866.

The previous prime is 30312739861. The next prime is 30312739903. The reversal of 30312739867 is 76893721303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30312739867 - 2²⁷ = 30178522139 is a prime.

It is a super-2 number, since 2×30312739867² (a number of 22 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 30312739867.

It is not a weakly prime, because it can be changed into another prime (30312739861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156369933 + 15156369934.

It is an arithmetic number, because the mean of its divisors is an integer number (15156369934).

Almost surely, 2^30312739867 is an apocalyptic number.

30312739867 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312739867 is an equidigital number, since it uses as much as digits as its factorization.

30312739867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 30312739867 in words is "thirty billion, three hundred twelve million, seven hundred thirty-nine thousand, eight hundred sixty-seven".