78792395478 has 32 divisors (see below), whose sum is σ = 158237439360. Its totient is φ = 26155509120.

The previous prime is 78792395471. The next prime is 78792395497. The reversal of 78792395478 is 87459329787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78792395471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138718 + ... + 2175246.

It is an arithmetic number, because the mean of its divisors is an integer number (4944919980).

Almost surely, 2^78792395478 is an apocalyptic number.

78792395478 is an abundant number, since it is smaller than the sum of its proper divisors (79445043882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78792395478 is a wasteful number, since it uses less digits than its factorization.

78792395478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38012.

The product of its digits is 213373440, while the sum is 69.

The spelling of 78792395478 in words is "seventy-eight billion, seven hundred ninety-two million, three hundred ninety-five thousand, four hundred seventy-eight".