511602401413 has 4 divisors (see below), whose sum is σ = 513798120108. Its totient is φ = 509406682720.

The previous prime is 511602401389. The next prime is 511602401423. The reversal of 511602401413 is 314104206115.

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 121349812609 + 390252588804 = 348353^2 + 624702^2 .

It is a cyclic number.

It is not a de Polignac number, because 511602401413 - 2⁹ = 511602400901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511602401423) 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, 1097858998 + ... + 1097859463.

It is an arithmetic number, because the mean of its divisors is an integer number (128449530027).

Almost surely, 2^511602401413 is an apocalyptic number.

It is an amenable number.

511602401413 is a deficient number, since it is larger than the sum of its proper divisors (2195718695).

511602401413 is a wasteful number, since it uses less digits than its factorization.

511602401413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195718694.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 511602401413 its reverse (314104206115), we get a palindrome (825706607528).

The spelling of 511602401413 in words is "five hundred eleven billion, six hundred two million, four hundred one thousand, four hundred thirteen".