505049999986 has 16 divisors (see below), whose sum is σ = 865813921920. Its totient is φ = 216446519520.

The previous prime is 505049999981. The next prime is 505050000001. The reversal of 505049999986 is 689999940505.

It is not an unprimeable number, because it can be changed into a prime (505049999981) 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, 737155 + ... + 1246393.

It is an arithmetic number, because the mean of its divisors is an integer number (54113370120).

Almost surely, 2^505049999986 is an apocalyptic number.

505049999986 is a deficient number, since it is larger than the sum of its proper divisors (360763921934).

505049999986 is a wasteful number, since it uses less digits than its factorization.

505049999986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580089.

The product of its (nonzero) digits is 283435200, while the sum is 73.

The spelling of 505049999986 in words is "five hundred five billion, forty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-six".