51905172003340 has 12 divisors (see below), whose sum is σ = 109000861207056. Its totient is φ = 20762068801328.

The previous prime is 51905172003313. The next prime is 51905172003407. The reversal of 51905172003340 is 4330027150915.

It is a junction number, because it is equal to n+sod(n) for n = 51905172003293 and 51905172003302.

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, 1297629300064 + ... + 1297629300103.

It is an arithmetic number, because the mean of its divisors is an integer number (9083405100588).

Almost surely, 2^{51905172003340} is an apocalyptic number.

It is an amenable number.

51905172003340 is an abundant number, since it is smaller than the sum of its proper divisors (57095689203716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51905172003340 is a wasteful number, since it uses less digits than its factorization.

51905172003340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595258600176 (or 2595258600174 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 51905172003340 in words is "fifty-one trillion, nine hundred five billion, one hundred seventy-two million, three thousand, three hundred forty".