3543786645 has 32 divisors (see below), whose sum is σ = 6483763200. Its totient is φ = 1619092800.

The previous prime is 3543786641. The next prime is 3543786667. The reversal of 3543786645 is 5466873453.

It is not a de Polignac number, because 3543786645 - 2² = 3543786641 is a prime.

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

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196206 + ... + 213504.

It is an arithmetic number, because the mean of its divisors is an integer number (202617600).

Almost surely, 2^3543786645 is an apocalyptic number.

3543786645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3543786645 is a deficient number, since it is larger than the sum of its proper divisors (2939976555).

3543786645 is a wasteful number, since it uses less digits than its factorization.

3543786645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19265.

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

The square root of 3543786645 is about 59529.7122872268. The cubic root of 3543786645 is about 1524.5997903498.

The spelling of 3543786645 in words is "three billion, five hundred forty-three million, seven hundred eighty-six thousand, six hundred forty-five".