505641646434 has 16 divisors (see below), whose sum is σ = 1011391644672. Its totient is φ = 168529156848.

The previous prime is 505641646421. The next prime is 505641646439. The reversal of 505641646434 is 434646146505.

It is not an unprimeable number, because it can be changed into a prime (505641646439) 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, 4453929 + ... + 4566044.

It is an arithmetic number, because the mean of its divisors is an integer number (63211977792).

Almost surely, 2^505641646434 is an apocalyptic number.

505641646434 is an abundant number, since it is smaller than the sum of its proper divisors (505749998238).

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

505641646434 is a wasteful number, since it uses less digits than its factorization.

505641646434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029321.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 505641646434 in words is "five hundred five billion, six hundred forty-one million, six hundred forty-six thousand, four hundred thirty-four".