3544665378 has 64 divisors (see below), whose sum is σ = 7520808960. Its totient is φ = 1111473792.

The previous prime is 3544665367. The next prime is 3544665413. The reversal of 3544665378 is 8735664453.

It is a self number, because there is not a number n which added to its sum of digits gives 3544665378.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3782526 + ... + 3783462.

It is an arithmetic number, because the mean of its divisors is an integer number (117512640).

Almost surely, 2^3544665378 is an apocalyptic number.

3544665378 is an abundant number, since it is smaller than the sum of its proper divisors (3976143582).

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

3544665378 is a wasteful number, since it uses less digits than its factorization.

3544665378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its digits is 7257600, while the sum is 51.

The square root of 3544665378 is about 59537.0924550402. The cubic root of 3544665378 is about 1524.7257954363.

The spelling of 3544665378 in words is "three billion, five hundred forty-four million, six hundred sixty-five thousand, three hundred seventy-eight".