398882171741 has 2 divisors, whose sum is σ = 398882171742. Its totient is φ = 398882171740.

The previous prime is 398882171731. The next prime is 398882171767. The reversal of 398882171741 is 147171288893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378477192025 + 20404979716 = 615205^2 + 142846^2 .

It is a cyclic number.

It is not a de Polignac number, because 398882171741 - 2³⁰ = 397808429917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398882171711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441085870 + 199441085871.

It is an arithmetic number, because the mean of its divisors is an integer number (199441085871).

Almost surely, 2^398882171741 is an apocalyptic number.

It is an amenable number.

398882171741 is a deficient number, since it is larger than the sum of its proper divisors (1).

398882171741 is an equidigital number, since it uses as much as digits as its factorization.

398882171741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5419008, while the sum is 59.

The spelling of 398882171741 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, one hundred seventy-one thousand, seven hundred forty-one".