51033739328 has 112 divisors (see below), whose sum is σ = 120203268864. Its totient is φ = 21191639040.

The previous prime is 51033739319. The next prime is 51033739343. The reversal of 51033739328 is 82393733015.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859001 + ... + 916487.

It is an arithmetic number, because the mean of its divisors is an integer number (1073243472).

Almost surely, 2^51033739328 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 51033739328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60101634432).

51033739328 is an abundant number, since it is smaller than the sum of its proper divisors (69169529536).

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

51033739328 is a wasteful number, since it uses less digits than its factorization.

51033739328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57620 (or 57610 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 51033739328 in words is "fifty-one billion, thirty-three million, seven hundred thirty-nine thousand, three hundred twenty-eight".