51172995132384 has 192 divisors, whose sum is σ = 141135331276800. Its totient is φ = 16214423132160.

The previous prime is 51172995132331. The next prime is 51172995132397. The reversal of 51172995132384 is 48323159927115.

It is a congruent number.

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, 69220122 + ... + 69955494.

It is an arithmetic number, because the mean of its divisors is an integer number (735079850400).

Almost surely, 2^{51172995132384} 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 51172995132384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70567665638400).

51172995132384 is an abundant number, since it is smaller than the sum of its proper divisors (89962336144416).

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

51172995132384 is a wasteful number, since it uses less digits than its factorization.

51172995132384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735833 (or 735825 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 60.

The spelling of 51172995132384 in words is "fifty-one trillion, one hundred seventy-two billion, nine hundred ninety-five million, one hundred thirty-two thousand, three hundred eighty-four".