51733041840 has 120 divisors (see below), whose sum is σ = 178432479888. Its totient is φ = 13422620160.

The previous prime is 51733041757. The next prime is 51733041953. The reversal of 51733041840 is 4814033715.

It is a happy number.

51733041840 is a `hidden beast` number, since 5 + 173 + 30 + 418 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×51733041840³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51733041795 and 51733041804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 944326 + ... + 997605.

Almost surely, 2^51733041840 is an apocalyptic number.

It is an amenable number.

51733041840 is an abundant number, since it is smaller than the sum of its proper divisors (126699438048).

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

51733041840 is a wasteful number, since it uses less digits than its factorization.

51733041840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941987 (or 1941978 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 51733041840 in words is "fifty-one billion, seven hundred thirty-three million, forty-one thousand, eight hundred forty".