398882177699 has 2 divisors, whose sum is σ = 398882177700. Its totient is φ = 398882177698.

The previous prime is 398882177677. The next prime is 398882177767. The reversal of 398882177699 is 996771288893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398882177699 - 2¹² = 398882173603 is a prime.

It is a super-2 number, since 2×398882177699² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (398882177399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441088849 + 199441088850.

It is an arithmetic number, because the mean of its divisors is an integer number (199441088850).

Almost surely, 2^398882177699 is an apocalyptic number.

398882177699 is a deficient number, since it is larger than the sum of its proper divisors (1).

398882177699 is an equidigital number, since it uses as much as digits as its factorization.

398882177699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658409472, while the sum is 77.

The spelling of 398882177699 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, one hundred seventy-seven thousand, six hundred ninety-nine".