3775545728 has 32 divisors (see below), whose sum is σ = 7780968000. Its totient is φ = 1822675456.

The previous prime is 3775545701. The next prime is 3775545791. The reversal of 3775545728 is 8275455773.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 3775545728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504848 + ... + 512271.

It is an arithmetic number, because the mean of its divisors is an integer number (243155250).

Almost surely, 2^3775545728 is an apocalyptic number.

It is an amenable number.

3775545728 is an abundant number, since it is smaller than the sum of its proper divisors (4005422272).

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

3775545728 is a wasteful number, since it uses less digits than its factorization.

3775545728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017162 (or 1017150 counting only the distinct ones).

The product of its digits is 8232000, while the sum is 53.

The square root of 3775545728 is about 61445.4695482100. The cubic root of 3775545728 is about 1557.1361175431.

The spelling of 3775545728 in words is "three billion, seven hundred seventy-five million, five hundred forty-five thousand, seven hundred twenty-eight".