78722318043 has 96 divisors (see below), whose sum is σ = 125850700800. Its totient is φ = 48612799296.

The previous prime is 78722318041. The next prime is 78722318083. The reversal of 78722318043 is 34081322787.

It is not a de Polignac number, because 78722318043 - 2¹ = 78722318041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78722318043.

It is not an unprimeable number, because it can be changed into a prime (78722318041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 211051605 + ... + 211051977.

It is an arithmetic number, because the mean of its divisors is an integer number (1310944800).

Almost surely, 2^78722318043 is an apocalyptic number.

78722318043 is a deficient number, since it is larger than the sum of its proper divisors (47128382757).

78722318043 is a wasteful number, since it uses less digits than its factorization.

78722318043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 78722318043 in words is "seventy-eight billion, seven hundred twenty-two million, three hundred eighteen thousand, forty-three".