78936342573 has 32 divisors (see below), whose sum is σ = 121594383360. Its totient is φ = 45017199360.

The previous prime is 78936342557. The next prime is 78936342577. The reversal of 78936342573 is 37524363987.

It is not a de Polignac number, because 78936342573 - 2⁴ = 78936342557 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78936342577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3736386 + ... + 3757452.

It is an arithmetic number, because the mean of its divisors is an integer number (3799824480).

Almost surely, 2^78936342573 is an apocalyptic number.

It is an amenable number.

78936342573 is a deficient number, since it is larger than the sum of its proper divisors (42658040787).

78936342573 is a wasteful number, since it uses less digits than its factorization.

78936342573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27777.

The product of its digits is 22861440, while the sum is 57.

The spelling of 78936342573 in words is "seventy-eight billion, nine hundred thirty-six million, three hundred forty-two thousand, five hundred seventy-three".