3622643651 has 8 divisors (see below), whose sum is σ = 4026541104. Its totient is φ = 3231173920.

The previous prime is 3622643641. The next prime is 3622643653. The reversal of 3622643651 is 1563462263.

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 a de Polignac number, because none of the positive numbers 2^k-3622643651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3622643653) 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, 3106316 + ... + 3107481.

It is an arithmetic number, because the mean of its divisors is an integer number (503317638).

Almost surely, 2^3622643651 is an apocalyptic number.

3622643651 is a deficient number, since it is larger than the sum of its proper divisors (403897453).

3622643651 is a wasteful number, since it uses less digits than its factorization.

3622643651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213861.

The product of its digits is 155520, while the sum is 38.

The square root of 3622643651 is about 60188.4012995860. The cubic root of 3622643651 is about 1535.8254923896.

The spelling of 3622643651 in words is "three billion, six hundred twenty-two million, six hundred forty-three thousand, six hundred fifty-one".