51883721046 has 40 divisors (see below), whose sum is σ = 116930042064. Its totient is φ = 17194595760.

The previous prime is 51883721027. The next prime is 51883721053. The reversal of 51883721046 is 64012738815.

51883721046 is a `hidden beast` number, since 518 + 83 + 7 + 2 + 10 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51883720992 and 51883721010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 897610 + ... + 953661.

Almost surely, 2^51883721046 is an apocalyptic number.

51883721046 is an abundant number, since it is smaller than the sum of its proper divisors (65046321018).

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

51883721046 is a wasteful number, since it uses less digits than its factorization.

51883721046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851458 (or 1851449 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 51883721046 in words is "fifty-one billion, eight hundred eighty-three million, seven hundred twenty-one thousand, forty-six".