51203856460 has 48 divisors (see below), whose sum is σ = 108615963456. Its totient is φ = 20274492672.

The previous prime is 51203856433. The next prime is 51203856461. The reversal of 51203856460 is 6465830215.

It is not an unprimeable number, because it can be changed into a prime (51203856461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9054994 + ... + 9060646.

It is an arithmetic number, because the mean of its divisors is an integer number (2262832572).

Almost surely, 2^51203856460 is an apocalyptic number.

It is an amenable number.

51203856460 is an abundant number, since it is smaller than the sum of its proper divisors (57412106996).

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

51203856460 is a wasteful number, since it uses less digits than its factorization.

51203856460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10162 (or 10160 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 51203856460 in words is "fifty-one billion, two hundred three million, eight hundred fifty-six thousand, four hundred sixty".