398680677584 has 20 divisors (see below), whose sum is σ = 882792929184. Its totient is φ = 170863147488.

The previous prime is 398680677533. The next prime is 398680677631. The reversal of 398680677584 is 485776086893.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779824342 + ... + 1779824565.

Almost surely, 2^398680677584 is an apocalyptic number.

It is an amenable number.

398680677584 is an abundant number, since it is smaller than the sum of its proper divisors (484112251600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398680677584 is a wasteful number, since it uses less digits than its factorization.

398680677584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559648922 (or 3559648916 counting only the distinct ones).

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

The spelling of 398680677584 in words is "three hundred ninety-eight billion, six hundred eighty million, six hundred seventy-seven thousand, five hundred eighty-four".