51350938392 has 256 divisors, whose sum is σ = 151647552000. Its totient is φ = 14352076800.

The previous prime is 51350938391. The next prime is 51350938421. The reversal of 51350938392 is 29383905315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350938391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14338042 + ... + 14341622.

It is an arithmetic number, because the mean of its divisors is an integer number (592373250).

Almost surely, 2^51350938392 is an apocalyptic number.

51350938392 is a gapful number since it is divisible by the number (52) 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 51350938392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75823776000).

51350938392 is an abundant number, since it is smaller than the sum of its proper divisors (100296613608).

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

51350938392 is a wasteful number, since it uses less digits than its factorization.

51350938392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3718 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 51350938392 in words is "fifty-one billion, three hundred fifty million, nine hundred thirty-eight thousand, three hundred ninety-two".