4474856329621 has 2 divisors, whose sum is σ = 4474856329622. Its totient is φ = 4474856329620.

The previous prime is 4474856329597. The next prime is 4474856329639. The reversal of 4474856329621 is 1269236584744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2583574022500 + 1891282307121 = 1607350^2 + 1375239^2 .

It is a cyclic number.

It is not a de Polignac number, because 4474856329621 - 2³¹ = 4472708845973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4474856329621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4474856329421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2237428164810 + 2237428164811.

It is an arithmetic number, because the mean of its divisors is an integer number (2237428164811).

Almost surely, 2^{4474856329621} is an apocalyptic number.

It is an amenable number.

4474856329621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4474856329621 is an equidigital number, since it uses as much as digits as its factorization.

4474856329621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69672960, while the sum is 61.

The spelling of 4474856329621 in words is "four trillion, four hundred seventy-four billion, eight hundred fifty-six million, three hundred twenty-nine thousand, six hundred twenty-one".