398519999999 has 24 divisors (see below), whose sum is σ = 446436050256. Its totient is φ = 355352940800.

The previous prime is 398519999971. The next prime is 398520000013. The reversal of 398519999999 is 999999915893.

It is not a de Polignac number, because 398519999999 - 2³² = 394225032703 is a prime.

It is a Duffinian number.

398519999999 is a modest number, since divided by 999999 gives 398519 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398519999909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30269192 + ... + 30282354.

It is an arithmetic number, because the mean of its divisors is an integer number (18601502094).

Almost surely, 2^398519999999 is an apocalyptic number.

398519999999 is a deficient number, since it is larger than the sum of its proper divisors (47916050257).

398519999999 is a wasteful number, since it uses less digits than its factorization.

398519999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17959 (or 17948 counting only the distinct ones).

The product of its digits is 5165606520, while the sum is 89.

The spelling of 398519999999 in words is "three hundred ninety-eight billion, five hundred nineteen million, nine hundred ninety-nine thousand, nine hundred ninety-nine".