78045275406 has 32 divisors (see below), whose sum is σ = 187778108160. Its totient is φ = 21125036736.

The previous prime is 78045275369. The next prime is 78045275411. The reversal of 78045275406 is 60457254087.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48899751 + ... + 48901346.

It is an arithmetic number, because the mean of its divisors is an integer number (5868065880).

Almost surely, 2^78045275406 is an apocalyptic number.

78045275406 is an abundant number, since it is smaller than the sum of its proper divisors (109732832754).

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

78045275406 is a wasteful number, since it uses less digits than its factorization.

78045275406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97801128.

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 78045275406 in words is "seventy-eight billion, forty-five million, two hundred seventy-five thousand, four hundred six".