51438460833608 has 32 divisors (see below), whose sum is σ = 97332969195000. Its totient is φ = 25483007324160.

The previous prime is 51438460833601. The next prime is 51438460833647. The reversal of 51438460833608 is 80633806483415.

It can be written as a sum of positive squares in 4 ways, for example, as 42673059781444 + 8765401052164 = 6532462^2 + 2960642^2 .

It is not an unprimeable number, because it can be changed into a prime (51438460833601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102699368 + ... + 103199016.

Almost surely, 2^{51438460833608} is an apocalyptic number.

It is an amenable number.

51438460833608 is a deficient number, since it is larger than the sum of its proper divisors (45894508361392).

51438460833608 is a wasteful number, since it uses less digits than its factorization.

51438460833608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617825 (or 617821 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 59.

The spelling of 51438460833608 in words is "fifty-one trillion, four hundred thirty-eight billion, four hundred sixty million, eight hundred thirty-three thousand, six hundred eight".