474224477315621 has 2 divisors, whose sum is σ = 474224477315622. Its totient is φ = 474224477315620.

The previous prime is 474224477315593. The next prime is 474224477315759. The reversal of 474224477315621 is 126513774422474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261580129086721 + 212644348228900 = 16173439^2 + 14582330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474224477315621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474224477315921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237112238657810 + 237112238657811.

It is an arithmetic number, because the mean of its divisors is an integer number (237112238657811).

Almost surely, 2^{474224477315621} is an apocalyptic number.

It is an amenable number.

474224477315621 is a deficient number, since it is larger than the sum of its proper divisors (1).

474224477315621 is an equidigital number, since it uses as much as digits as its factorization.

474224477315621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63221760, while the sum is 59.

The spelling of 474224477315621 in words is "four hundred seventy-four trillion, two hundred twenty-four billion, four hundred seventy-seven million, three hundred fifteen thousand, six hundred twenty-one".