3543786644 has 12 divisors (see below), whose sum is σ = 6203967168. Its totient is φ = 1771224600.

The previous prime is 3543786641. The next prime is 3543786667. The reversal of 3543786644 is 4466873453.

3543786644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3543786592 and 3543786601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3543786641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155162 + ... + 176529.

It is an arithmetic number, because the mean of its divisors is an integer number (516997264).

Almost surely, 2^3543786644 is an apocalyptic number.

It is an amenable number.

3543786644 is a deficient number, since it is larger than the sum of its proper divisors (2660180524).

3543786644 is a wasteful number, since it uses less digits than its factorization.

3543786644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334366 (or 334364 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 50.

The square root of 3543786644 is about 59529.7122788276. The cubic root of 3543786644 is about 1524.5997902064.

The spelling of 3543786644 in words is "three billion, five hundred forty-three million, seven hundred eighty-six thousand, six hundred forty-four".