3545872128 has 108 divisors (see below), whose sum is σ = 10241752248. Its totient is φ = 1179863040.

The previous prime is 3545872081. The next prime is 3545872157. The reversal of 3545872128 is 8212785453.

3545872128 is a `hidden beast` number, since 3 + 5 + 458 + 72 + 128 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1835323 + ... + 1837253.

Almost surely, 2^3545872128 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 3545872128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5120876124).

3545872128 is an abundant number, since it is smaller than the sum of its proper divisors (6695880120).

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

3545872128 is a wasteful number, since it uses less digits than its factorization.

3545872128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2733 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 3545872128 is about 59547.2260311091. The cubic root of 3545872128 is about 1524.8988022788.

The spelling of 3545872128 in words is "three billion, five hundred forty-five million, eight hundred seventy-two thousand, one hundred twenty-eight".