511450442144 has 12 divisors (see below), whose sum is σ = 1006918058034. Its totient is φ = 255725221056.

The previous prime is 511450442141. The next prime is 511450442149. The reversal of 511450442144 is 441244054115.

It can be written as a sum of positive squares in only one way, i.e., 329131690000 + 182318752144 = 573700^2 + 426988^2 .

It is not an unprimeable number, because it can be changed into a prime (511450442141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7991413127 + ... + 7991413190.

Almost surely, 2^511450442144 is an apocalyptic number.

It is an amenable number.

511450442144 is a deficient number, since it is larger than the sum of its proper divisors (495467615890).

511450442144 is a wasteful number, since it uses less digits than its factorization.

511450442144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15982826327 (or 15982826319 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 511450442144 its reverse (441244054115), we get a palindrome (952694496259).

The spelling of 511450442144 in words is "five hundred eleven billion, four hundred fifty million, four hundred forty-two thousand, one hundred forty-four".