998318620575 has 96 divisors (see below), whose sum is σ = 1843759134720. Its totient is φ = 529596144000.

The previous prime is 998318620571. The next prime is 998318620603. The reversal of 998318620575 is 575026813899.

998318620575 is a `hidden beast` number, since 9 + 9 + 8 + 31 + 8 + 6 + 20 + 575 = 666.

It is not a de Polignac number, because 998318620575 - 2² = 998318620571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998318620571) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98341750 + ... + 98351900.

It is an arithmetic number, because the mean of its divisors is an integer number (19205824320).

Almost surely, 2^998318620575 is an apocalyptic number.

998318620575 is a deficient number, since it is larger than the sum of its proper divisors (845440514145).

998318620575 is a wasteful number, since it uses less digits than its factorization.

998318620575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10934 (or 10923 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The spelling of 998318620575 in words is "nine hundred ninety-eight billion, three hundred eighteen million, six hundred twenty thousand, five hundred seventy-five".