51793018004 has 144 divisors (see below), whose sum is σ = 122860539648. Its totient is φ = 18566102016.

The previous prime is 51793018001. The next prime is 51793018007. The reversal of 51793018004 is 40081039715.

It is an interprime number because it is at equal distance from previous prime (51793018001) and next prime (51793018007).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793018001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3013724 + ... + 3030860.

It is an arithmetic number, because the mean of its divisors is an integer number (853198192).

Almost surely, 2^51793018004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51793018004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61430269824).

51793018004 is an abundant number, since it is smaller than the sum of its proper divisors (71067521644).

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

51793018004 is a wasteful number, since it uses less digits than its factorization.

51793018004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222 (or 17201 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 51793018004 in words is "fifty-one billion, seven hundred ninety-three million, eighteen thousand, four".