398320273923768 has 96 divisors (see below), whose sum is σ = 1234975169656800. Its totient is φ = 113613877131264.

The previous prime is 398320273923749. The next prime is 398320273923791. The reversal of 398320273923768 is 867329372023893.

398320273923768 is a `hidden beast` number, since 3 + 9 + 8 + 320 + 2 + 7 + 3 + 9 + 237 + 68 = 666.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 398320273923696 and 398320273923705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 666073813 + ... + 666671556.

It is an arithmetic number, because the mean of its divisors is an integer number (12864324683925).

Almost surely, 2^{398320273923768} is an apocalyptic number.

It is an amenable number.

398320273923768 is an abundant number, since it is smaller than the sum of its proper divisors (836654895733032).

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

398320273923768 is a wasteful number, since it uses less digits than its factorization.

398320273923768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332745981 (or 1332745974 counting only the distinct ones).

The product of its (nonzero) digits is 987614208, while the sum is 72.

The spelling of 398320273923768 in words is "three hundred ninety-eight trillion, three hundred twenty billion, two hundred seventy-three million, nine hundred twenty-three thousand, seven hundred sixty-eight".