3818470621 has 8 divisors (see below), whose sum is σ = 4366461440. Its totient is φ = 3271103568.

The previous prime is 3818470613. The next prime is 3818470637. The reversal of 3818470621 is 1260748183.

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 3818470621 - 2³ = 3818470613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3818470321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142746 + ... + 167371.

It is an arithmetic number, because the mean of its divisors is an integer number (545807680).

Almost surely, 2^3818470621 is an apocalyptic number.

It is an amenable number.

3818470621 is a deficient number, since it is larger than the sum of its proper divisors (547990819).

3818470621 is a wasteful number, since it uses less digits than its factorization.

3818470621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311883.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 3818470621 is about 61793.7749372864. The cubic root of 3818470621 is about 1563.0150190120.

The spelling of 3818470621 in words is "three billion, eight hundred eighteen million, four hundred seventy thousand, six hundred twenty-one".