51374625824478 has 256 divisors, whose sum is σ = 119669495758848. Its totient is φ = 14558788608000.

The previous prime is 51374625824471. The next prime is 51374625824579. The reversal of 51374625824478 is 87442852647315.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51374625824471) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9369799525 + ... + 9369805007.

It is an arithmetic number, because the mean of its divisors is an integer number (467458967808).

Almost surely, 2^{51374625824478} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51374625824478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59834747879424).

51374625824478 is an abundant number, since it is smaller than the sum of its proper divisors (68294869934370).

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

51374625824478 is a wasteful number, since it uses less digits than its factorization.

51374625824478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871.

The product of its digits is 361267200, while the sum is 66.

The spelling of 51374625824478 in words is "fifty-one trillion, three hundred seventy-four billion, six hundred twenty-five million, eight hundred twenty-four thousand, four hundred seventy-eight".