51510000328 has 16 divisors (see below), whose sum is σ = 96598420380. Its totient is φ = 25750421568.

The previous prime is 51510000287. The next prime is 51510000371. The reversal of 51510000328 is 82300001515.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51509933764 + 66564 = 226958^2 + 258^2 .

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, 524275 + ... + 614722.

Almost surely, 2^51510000328 is an apocalyptic number.

It is an amenable number.

51510000328 is a deficient number, since it is larger than the sum of its proper divisors (45088420052).

51510000328 is a wasteful number, since it uses less digits than its factorization.

51510000328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144656 (or 1144652 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 51510000328 in words is "fifty-one billion, five hundred ten million, three hundred twenty-eight", and thus it is an aban number.