3651420266 has 64 divisors (see below), whose sum is σ = 6401203200. Its totient is φ = 1547859456.

The previous prime is 3651420263. The next prime is 3651420287. The reversal of 3651420266 is 6620241563.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3651420263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2329415 + ... + 2330981.

It is an arithmetic number, because the mean of its divisors is an integer number (100018800).

Almost surely, 2^3651420266 is an apocalyptic number.

3651420266 is a deficient number, since it is larger than the sum of its proper divisors (2749782934).

3651420266 is a wasteful number, since it uses less digits than its factorization.

3651420266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 3651420266 is about 60426.9829298137. The cubic root of 3651420266 is about 1539.8814022909.

The spelling of 3651420266 in words is "three billion, six hundred fifty-one million, four hundred twenty thousand, two hundred sixty-six".