2002187446657 has 2 divisors, whose sum is σ = 2002187446658. Its totient is φ = 2002187446656.

The previous prime is 2002187446631. The next prime is 2002187446663. The reversal of 2002187446657 is 7566447812002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600834788081 + 401352658576 = 1265241^2 + 633524^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002187446657 - 2⁷ = 2002187446529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2002187446607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001093723328 + 1001093723329.

It is an arithmetic number, because the mean of its divisors is an integer number (1001093723329).

Almost surely, 2^{2002187446657} is an apocalyptic number.

It is an amenable number.

2002187446657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002187446657 is an equidigital number, since it uses as much as digits as its factorization.

2002187446657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 2002187446657 in words is "two trillion, two billion, one hundred eighty-seven million, four hundred forty-six thousand, six hundred fifty-seven".