51830121788424 has 128 divisors (see below), whose sum is σ = 164595614976000. Its totient is φ = 14803607103552.

The previous prime is 51830121788413. The next prime is 51830121788513. The reversal of 51830121788424 is 42488712103815.

51830121788424 is a `hidden beast` number, since 5 + 1 + 8 + 30 + 12 + 178 + 8 + 424 = 666.

It is a super-3 number, since 3×51830121788424³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1304484 + ... + 10264595.

It is an arithmetic number, because the mean of its divisors is an integer number (1285903242000).

Almost surely, 2^{51830121788424} is an apocalyptic number.

51830121788424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51830121788424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82297807488000).

51830121788424 is an abundant number, since it is smaller than the sum of its proper divisors (112765493187576).

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

51830121788424 is a wasteful number, since it uses less digits than its factorization.

51830121788424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11572064 (or 11572054 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 51830121788424 in words is "fifty-one trillion, eight hundred thirty billion, one hundred twenty-one million, seven hundred eighty-eight thousand, four hundred twenty-four".