51514440992 has 192 divisors, whose sum is σ = 130032967680. Its totient is φ = 19578848256.

The previous prime is 51514440979. The next prime is 51514441003. The reversal of 51514440992 is 29904441515.

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, 4595138 + ... + 4606334.

It is an arithmetic number, because the mean of its divisors is an integer number (677255040).

Almost surely, 2^51514440992 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 51514440992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65016483840).

51514440992 is an abundant number, since it is smaller than the sum of its proper divisors (78518526688).

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

51514440992 is a wasteful number, since it uses less digits than its factorization.

51514440992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11303 (or 11295 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 51514440992 in words is "fifty-one billion, five hundred fourteen million, four hundred forty thousand, nine hundred ninety-two".