501340534361 has 4 divisors (see below), whose sum is σ = 505777176372. Its totient is φ = 496903892352.

The previous prime is 501340534291. The next prime is 501340534399. The reversal of 501340534361 is 163435043105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 278409246025 + 222931288336 = 527645^2 + 472156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501340534361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501340504361) 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, 2218320836 + ... + 2218321061.

It is an arithmetic number, because the mean of its divisors is an integer number (126444294093).

Almost surely, 2^501340534361 is an apocalyptic number.

It is an amenable number.

501340534361 is a deficient number, since it is larger than the sum of its proper divisors (4436642011).

501340534361 is a wasteful number, since it uses less digits than its factorization.

501340534361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436642010.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 501340534361 its reverse (163435043105), we get a palindrome (664775577466).

The spelling of 501340534361 in words is "five hundred one billion, three hundred forty million, five hundred thirty-four thousand, three hundred sixty-one".