10570645728 has 36 divisors (see below), whose sum is σ = 30060274608. Its totient is φ = 3523548480.

The previous prime is 10570645721. The next prime is 10570645741. The reversal of 10570645728 is 82754607501.

10570645728 is a `hidden beast` number, since 1 + 0 + 5 + 70 + 6 + 4 + 572 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×10570645728² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10570645721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18351528 + ... + 18352103.

It is an arithmetic number, because the mean of its divisors is an integer number (835007628).

Almost surely, 2^10570645728 is an apocalyptic number.

10570645728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10570645728 is an abundant number, since it is smaller than the sum of its proper divisors (19489628880).

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

10570645728 is a wasteful number, since it uses less digits than its factorization.

10570645728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36703647 (or 36703636 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 10570645728 in words is "ten billion, five hundred seventy million, six hundred forty-five thousand, seven hundred twenty-eight".