4476981621 has 16 divisors (see below), whose sum is σ = 6828483200. Its totient is φ = 2555869248.

The previous prime is 4476981583. The next prime is 4476981629. The reversal of 4476981621 is 1261896744.

It is not a de Polignac number, because 4476981621 - 2⁷ = 4476981493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4476981629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77266 + ... + 122163.

It is an arithmetic number, because the mean of its divisors is an integer number (426780200).

Almost surely, 2^4476981621 is an apocalyptic number.

It is an amenable number.

4476981621 is a deficient number, since it is larger than the sum of its proper divisors (2351501579).

4476981621 is a wasteful number, since it uses less digits than its factorization.

4476981621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200508.

The product of its digits is 580608, while the sum is 48.

The square root of 4476981621 is about 66910.2504927309. The cubic root of 4476981621 is about 1648.1438105259.

The spelling of 4476981621 in words is "four billion, four hundred seventy-six million, nine hundred eighty-one thousand, six hundred twenty-one".