398519999998 has 48 divisors (see below), whose sum is σ = 643128975360. Its totient is φ = 185144778000.

The previous prime is 398519999971. The next prime is 398520000013. The reversal of 398519999998 is 899999915893.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8589603 + ... + 8635873.

It is an arithmetic number, because the mean of its divisors is an integer number (13398520320).

Almost surely, 2^398519999998 is an apocalyptic number.

398519999998 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

398519999998 is a deficient number, since it is larger than the sum of its proper divisors (244608975362).

398519999998 is a wasteful number, since it uses less digits than its factorization.

398519999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46541 (or 46522 counting only the distinct ones).

The product of its digits is 4591650240, while the sum is 88.

The spelling of 398519999998 in words is "three hundred ninety-eight billion, five hundred nineteen million, nine hundred ninety-nine thousand, nine hundred ninety-eight".