511053635434 has 4 divisors (see below), whose sum is σ = 766580453154. Its totient is φ = 255526817716.

The previous prime is 511053635413. The next prime is 511053635441. The reversal of 511053635434 is 434536350115.

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

It can be written as a sum of positive squares in only one way, i.e., 270166050625 + 240887584809 = 519775^2 + 490803^2 .

It is a super-2 number, since 2×511053635434² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127763408857 + ... + 127763408860.

Almost surely, 2^511053635434 is an apocalyptic number.

511053635434 is a deficient number, since it is larger than the sum of its proper divisors (255526817720).

511053635434 is a wasteful number, since it uses less digits than its factorization.

511053635434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255526817719.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 511053635434 its reverse (434536350115), we get a palindrome (945589985549).

The spelling of 511053635434 in words is "five hundred eleven billion, fifty-three million, six hundred thirty-five thousand, four hundred thirty-four".