78112543039 has 2 divisors, whose sum is σ = 78112543040. Its totient is φ = 78112543038.

The previous prime is 78112543027. The next prime is 78112543079. The reversal of 78112543039 is 93034521187.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78112543039 - 2¹¹ = 78112540991 is a prime.

It is a super-2 number, since 2×78112543039² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78112542986 and 78112543004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78112543079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39056271519 + 39056271520.

It is an arithmetic number, because the mean of its divisors is an integer number (39056271520).

Almost surely, 2^78112543039 is an apocalyptic number.

78112543039 is a deficient number, since it is larger than the sum of its proper divisors (1).

78112543039 is an equidigital number, since it uses as much as digits as its factorization.

78112543039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 78112543039 in words is "seventy-eight billion, one hundred twelve million, five hundred forty-three thousand, thirty-nine".