398877625682 has 16 divisors (see below), whose sum is σ = 633564477432. Its totient is φ = 187691427840.

The previous prime is 398877625681. The next prime is 398877625711. The reversal of 398877625682 is 286526778893.

It can be written as a sum of positive squares in 4 ways, for example, as 364020362281 + 34857263401 = 603341^2 + 186701^2 .

It is not an unprimeable number, because it can be changed into a prime (398877625681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72419 + ... + 896102.

Almost surely, 2^398877625682 is an apocalyptic number.

398877625682 is a deficient number, since it is larger than the sum of its proper divisors (234686851750).

398877625682 is a wasteful number, since it uses less digits than its factorization.

398877625682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980653.

The product of its digits is 487710720, while the sum is 71.

The spelling of 398877625682 in words is "three hundred ninety-eight billion, eight hundred seventy-seven million, six hundred twenty-five thousand, six hundred eighty-two".