51784426536848 has 20 divisors (see below), whose sum is σ = 101541149627568. Its totient is φ = 25580258891040.

The previous prime is 51784426536841. The next prime is 51784426536859. The reversal of 51784426536848 is 84863562448715.

It is not an unprimeable number, because it can be changed into a prime (51784426536841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19497147218 + ... + 19497149873.

Almost surely, 2^{51784426536848} is an apocalyptic number.

It is an amenable number.

51784426536848 is a deficient number, since it is larger than the sum of its proper divisors (49756723090720).

51784426536848 is a wasteful number, since it uses less digits than its factorization.

51784426536848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38994297182 (or 38994297176 counting only the distinct ones).

The product of its digits is 1238630400, while the sum is 71.

The spelling of 51784426536848 in words is "fifty-one trillion, seven hundred eighty-four billion, four hundred twenty-six million, five hundred thirty-six thousand, eight hundred forty-eight".