51950323591488 has 1120 divisors, whose sum is σ = 189887614371840. Its totient is φ = 13725015736320.

The previous prime is 51950323591471. The next prime is 51950323591577. The reversal of 51950323591488 is 88419532305915.

51950323591488 is a `hidden beast` number, since 5 + 1 + 9 + 5 + 0 + 32 + 3 + 591 + 4 + 8 + 8 = 666.

It is a super-2 number, since 2×51950323591488² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3164414256 + ... + 3164430672.

It is an arithmetic number, because the mean of its divisors is an integer number (169542512832).

Almost surely, 2^{51950323591488} is an apocalyptic number.

51950323591488 is a gapful number since it is divisible by the number (58) 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 51950323591488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94943807185920).

51950323591488 is an abundant number, since it is smaller than the sum of its proper divisors (137937290780352).

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

51950323591488 is a wasteful number, since it uses less digits than its factorization.

51950323591488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16605 (or 16586 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 51950323591488 in words is "fifty-one trillion, nine hundred fifty billion, three hundred twenty-three million, five hundred ninety-one thousand, four hundred eighty-eight".