78875544005 has 54 divisors (see below), whose sum is σ = 101083795254. Its totient is φ = 59081769600.

The previous prime is 78875543969. The next prime is 78875544031. The reversal of 78875544005 is 50044557887.

It can be written as a sum of positive squares in 9 ways, for example, as 58892611684 + 19982932321 = 242678^2 + 141361^2 .

It is not a de Polignac number, because 78875544005 - 2¹⁶ = 78875478469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1110923120 + ... + 1110923190.

Almost surely, 2^78875544005 is an apocalyptic number.

It is an amenable number.

78875544005 is a deficient number, since it is larger than the sum of its proper divisors (22208251249).

78875544005 is an frugal number, since it uses more digits than its factorization.

78875544005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 6272000, while the sum is 53.

The spelling of 78875544005 in words is "seventy-eight billion, eight hundred seventy-five million, five hundred forty-four thousand, five".