506042136541 has 4 divisors (see below), whose sum is σ = 506060547552. Its totient is φ = 506023725532.

The previous prime is 506042136533. The next prime is 506042136569. The reversal of 506042136541 is 145631240605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506042136541 - 2³ = 506042136533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 506042136541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506042130541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9164215 + ... + 9219268.

It is an arithmetic number, because the mean of its divisors is an integer number (126515136888).

Almost surely, 2^506042136541 is an apocalyptic number.

It is an amenable number.

506042136541 is a deficient number, since it is larger than the sum of its proper divisors (18411011).

506042136541 is a wasteful number, since it uses less digits than its factorization.

506042136541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18411010.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 506042136541 in words is "five hundred six billion, forty-two million, one hundred thirty-six thousand, five hundred forty-one".