3661980626 has 16 divisors (see below), whose sum is σ = 5735499840. Its totient is φ = 1751327760.

The previous prime is 3661980601. The next prime is 3661980629. The reversal of 3661980626 is 6260891663.

3661980626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3661980629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288830 + ... + 301241.

It is an arithmetic number, because the mean of its divisors is an integer number (358468740).

Almost surely, 2^3661980626 is an apocalyptic number.

3661980626 is a deficient number, since it is larger than the sum of its proper divisors (2073519214).

3661980626 is a wasteful number, since it uses less digits than its factorization.

3661980626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590209.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 3661980626 is about 60514.3010039776. The cubic root of 3661980626 is about 1541.3644827518.

The spelling of 3661980626 in words is "three billion, six hundred sixty-one million, nine hundred eighty thousand, six hundred twenty-six".