78597734906 has 16 divisors (see below), whose sum is σ = 123036663744. Its totient is φ = 37585905984.

The previous prime is 78597734903. The next prime is 78597734927. The reversal of 78597734906 is 60943779587.

It is a super-3 number, since 3×78597734906³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78597734903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326801 + ... + 513803.

It is an arithmetic number, because the mean of its divisors is an integer number (7689791484).

Almost surely, 2^78597734906 is an apocalyptic number.

78597734906 is a deficient number, since it is larger than the sum of its proper divisors (44438928838).

78597734906 is a wasteful number, since it uses less digits than its factorization.

78597734906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196165.

The product of its (nonzero) digits is 80015040, while the sum is 65.

The spelling of 78597734906 in words is "seventy-eight billion, five hundred ninety-seven million, seven hundred thirty-four thousand, nine hundred six".