2051357747328 has 320 divisors, whose sum is σ = 6473652498720. Its totient is φ = 642593710080.

The previous prime is 2051357747303. The next prime is 2051357747347. The reversal of 2051357747328 is 8237477531502.

2051357747328 is a `hidden beast` number, since 2 + 0 + 5 + 1 + 3 + 577 + 47 + 3 + 28 = 666.

It is a super-2 number, since 2×2051357747328² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121784475 + ... + 121801317.

Almost surely, 2^{2051357747328} 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 2051357747328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3236826249360).

2051357747328 is an abundant number, since it is smaller than the sum of its proper divisors (4422294751392).

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

2051357747328 is a wasteful number, since it uses less digits than its factorization.

2051357747328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17577 (or 17556 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 54.

The spelling of 2051357747328 in words is "two trillion, fifty-one billion, three hundred fifty-seven million, seven hundred forty-seven thousand, three hundred twenty-eight".