511342125464 has 16 divisors (see below), whose sum is σ = 959696439120. Its totient is φ = 255423075040.

The previous prime is 511342125397. The next prime is 511342125487. The reversal of 511342125464 is 464521243115.

It is a super-2 number, since 2×511342125464² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30989699 + ... + 31006194.

It is an arithmetic number, because the mean of its divisors is an integer number (59981027445).

Almost surely, 2^511342125464 is an apocalyptic number.

It is an amenable number.

511342125464 is a deficient number, since it is larger than the sum of its proper divisors (448354313656).

511342125464 is a wasteful number, since it uses less digits than its factorization.

511342125464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61996930 (or 61996926 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

Adding to 511342125464 its reverse (464521243115), we get a palindrome (975863368579).

The spelling of 511342125464 in words is "five hundred eleven billion, three hundred forty-two million, one hundred twenty-five thousand, four hundred sixty-four".