3622628561 has 8 divisors (see below), whose sum is σ = 3678454560. Its totient is φ = 3566854368.

The previous prime is 3622628557. The next prime is 3622628587. The reversal of 3622628561 is 1658262263.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3622628561 - 2² = 3622628557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3622628161) 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, 142130 + ... + 165668.

It is an arithmetic number, because the mean of its divisors is an integer number (459806820).

Almost surely, 2^3622628561 is an apocalyptic number.

It is an amenable number.

3622628561 is a deficient number, since it is larger than the sum of its proper divisors (55825999).

3622628561 is a wasteful number, since it uses less digits than its factorization.

3622628561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25903.

The product of its digits is 207360, while the sum is 41.

The square root of 3622628561 is about 60188.2759430772. The cubic root of 3622628561 is about 1535.8233599102.

The spelling of 3622628561 in words is "three billion, six hundred twenty-two million, six hundred twenty-eight thousand, five hundred sixty-one".