78578579287 has 8 divisors (see below), whose sum is σ = 88302350304. Its totient is φ = 69380417568.

The previous prime is 78578579251. The next prime is 78578579297. The reversal of 78578579287 is 78297587587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78578579287 - 2²⁷ = 78444361559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78578579207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131402008 + ... + 131402605.

It is an arithmetic number, because the mean of its divisors is an integer number (11037793788).

Almost surely, 2^78578579287 is an apocalyptic number.

78578579287 is a deficient number, since it is larger than the sum of its proper divisors (9723771017).

78578579287 is a wasteful number, since it uses less digits than its factorization.

78578579287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262804649.

The product of its digits is 553190400, while the sum is 73.

The spelling of 78578579287 in words is "seventy-eight billion, five hundred seventy-eight million, five hundred seventy-nine thousand, two hundred eighty-seven".