78112543043 has 12 divisors (see below), whose sum is σ = 83496841920. Its totient is φ = 72986109840.

The previous prime is 78112543039. The next prime is 78112543079. The reversal of 78112543043 is 34034521187.

It is not a de Polignac number, because 78112543043 - 2² = 78112543039 is a prime.

It is a super-2 number, since 2×78112543043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78112542988 and 78112543006.

It is not an unprimeable number, because it can be changed into a prime (78112543643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373555 + ... + 1429292.

It is an arithmetic number, because the mean of its divisors is an integer number (6958070160).

Almost surely, 2^78112543043 is an apocalyptic number.

78112543043 is a deficient number, since it is larger than the sum of its proper divisors (5384298877).

78112543043 is a wasteful number, since it uses less digits than its factorization.

78112543043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802938 (or 2802907 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 78112543043 in words is "seventy-eight billion, one hundred twelve million, five hundred forty-three thousand, forty-three".