5185170042 has 64 divisors (see below), whose sum is σ = 11634779520. Its totient is φ = 1530086400.

The previous prime is 5185170037. The next prime is 5185170061. The reversal of 5185170042 is 2400715815.

It is a junction number, because it is equal to n+sod(n) for n = 5185169985 and 5185170012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174942 + ... + 202422.

It is an arithmetic number, because the mean of its divisors is an integer number (181793430).

Almost surely, 2^5185170042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5185170042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5817389760).

5185170042 is an abundant number, since it is smaller than the sum of its proper divisors (6449609478).

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

5185170042 is a wasteful number, since it uses less digits than its factorization.

5185170042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27599.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 5185170042 is about 72008.1248332436. The cubic root of 5185170042 is about 1730.8296823342.

Adding to 5185170042 its reverse (2400715815), we get a palindrome (7585885857).

The spelling of 5185170042 in words is "five billion, one hundred eighty-five million, one hundred seventy thousand, forty-two".