79285715105 has 8 divisors (see below), whose sum is σ = 97714286952. Its totient is φ = 61714286208.

The previous prime is 79285715101. The next prime is 79285715107. The reversal of 79285715105 is 50151758297.

It can be written as a sum of positive squares in 4 ways, for example, as 16769214016 + 62516501089 = 129496^2 + 250033^2 .

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 79285715105 - 2² = 79285715101 is a prime.

It is a super-2 number, since 2×79285715105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79285715101) 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, 214285532 + ... + 214285901.

It is an arithmetic number, because the mean of its divisors is an integer number (12214285869).

Almost surely, 2^79285715105 is an apocalyptic number.

It is an amenable number.

79285715105 is a deficient number, since it is larger than the sum of its proper divisors (18428571847).

79285715105 is a wasteful number, since it uses less digits than its factorization.

79285715105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428571475.

The product of its (nonzero) digits is 882000, while the sum is 50.

The spelling of 79285715105 in words is "seventy-nine billion, two hundred eighty-five million, seven hundred fifteen thousand, one hundred five".