3635145378 has 42 divisors (see below), whose sum is σ = 8180518059. Its totient is φ = 1210947732.

The previous prime is 3635145361. The next prime is 3635145383. The reversal of 3635145378 is 8735415363.

3635145378 is a `hidden beast` number, since 3 + 63 + 51 + 4 + 537 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1817572689 + 1817572689 = 42633^2 + 42633^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=42633.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 2301393 + ... + 2302971.

Almost surely, 2^3635145378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3635145378

3635145378 is an abundant number, since it is smaller than the sum of its proper divisors (4545372681).

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

3635145378 is an frugal number, since it uses more digits than its factorization.

3635145378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178 (or 1584 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 3635145378 is about 60292.1668046522. The cubic root of 3635145378 is about 1537.5901729386.

The spelling of 3635145378 in words is "three billion, six hundred thirty-five million, one hundred forty-five thousand, three hundred seventy-eight".