511126614839972 has 24 divisors (see below), whose sum is σ = 899466264158616. Its totient is φ = 254139607482368.

The previous prime is 511126614839921. The next prime is 511126614840013. The reversal of 511126614839972 is 279938416621115.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 290715594547456 + 220411020292516 = 17050384^2 + 14846246^2 .

It is a super-2 number, since 2×511126614839972² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511126614839899 and 511126614839908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418618793 + ... + 419838000.

It is an arithmetic number, because the mean of its divisors is an integer number (37477761006609).

Almost surely, 2^{511126614839972} is an apocalyptic number.

It is an amenable number.

511126614839972 is a deficient number, since it is larger than the sum of its proper divisors (388339649318644).

511126614839972 is a wasteful number, since it uses less digits than its factorization.

511126614839972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838457647 (or 838457645 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 65.

The spelling of 511126614839972 in words is "five hundred eleven trillion, one hundred twenty-six billion, six hundred fourteen million, eight hundred thirty-nine thousand, nine hundred seventy-two".