51158733000 has 256 divisors, whose sum is σ = 162124934400. Its totient is φ = 13429606400.

The previous prime is 51158732969. The next prime is 51158733001. The reversal of 51158733000 is 33785115.

It is not an unprimeable number, because it can be changed into a prime (51158733001) 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, 63236596 + ... + 63237404.

It is an arithmetic number, because the mean of its divisors is an integer number (633300525).

Almost surely, 2^51158733000 is an apocalyptic number.

51158733000 is a gapful number since it is divisible by the number (50) 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 51158733000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81062467200).

51158733000 is an abundant number, since it is smaller than the sum of its proper divisors (110966201400).

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

51158733000 is a wasteful number, since it uses less digits than its factorization.

51158733000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 51158733000 in words is "fifty-one billion, one hundred fifty-eight million, seven hundred thirty-three thousand".