320853315387798 has 16 divisors (see below), whose sum is σ = 713007367528560. Its totient is φ = 106951105129248.

The previous prime is 320853315387793. The next prime is 320853315387811. The reversal of 320853315387798 is 897783513358023.

320853315387798 is a `hidden beast` number, since 3 + 2 + 0 + 8 + 53 + 31 + 538 + 7 + 7 + 9 + 8 = 666.

It is a super-2 number, since 2×320853315387798² (a number of 30 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320853315387793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2970864031315 + ... + 2970864031422.

It is an arithmetic number, because the mean of its divisors is an integer number (44562960470535).

Almost surely, 2^{320853315387798} is an apocalyptic number.

320853315387798 is an abundant number, since it is smaller than the sum of its proper divisors (392154052140762).

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

320853315387798 is a wasteful number, since it uses less digits than its factorization.

320853315387798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941728062748 (or 5941728062742 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 72.

The spelling of 320853315387798 in words is "three hundred twenty trillion, eight hundred fifty-three billion, three hundred fifteen million, three hundred eighty-seven thousand, seven hundred ninety-eight".