3557630745 has 12 divisors (see below), whose sum is σ = 6166560036. Its totient is φ = 1897403040.

The previous prime is 3557630729. The next prime is 3557630753. The reversal of 3557630745 is 5470367553.

3557630745 is a `hidden beast` number, since 3 + 5 + 5 + 7 + 630 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2018794761 + 1538835984 = 44931^2 + 39228^2 .

It is not a de Polignac number, because 3557630745 - 2⁴ = 3557630729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 79058461 = 3557630745 / (3 + 5 + 5 + 7 + 6 + 3 + 0 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3557630745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39529186 + ... + 39529275.

It is an arithmetic number, because the mean of its divisors is an integer number (513880003).

Almost surely, 2^3557630745 is an apocalyptic number.

It is an amenable number.

3557630745 is a deficient number, since it is larger than the sum of its proper divisors (2608929291).

3557630745 is a wasteful number, since it uses less digits than its factorization.

3557630745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79058472 (or 79058469 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 45.

The square root of 3557630745 is about 59645.8778542155. The cubic root of 3557630745 is about 1526.5825363518.

The spelling of 3557630745 in words is "three billion, five hundred fifty-seven million, six hundred thirty thousand, seven hundred forty-five".