397801066828308 has 288 divisors, whose sum is σ = 1102522707242880. Its totient is φ = 110889904435200.

The previous prime is 397801066828303. The next prime is 397801066828391. The reversal of 397801066828308 is 803828660108793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397801066828303) 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, 16350888688 + ... + 16350913016.

Almost surely, 2^{397801066828308} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397801066828308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551261353621440).

397801066828308 is an abundant number, since it is smaller than the sum of its proper divisors (704721640414572).

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

397801066828308 is a wasteful number, since it uses less digits than its factorization.

397801066828308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27319 (or 27306 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 69.

The spelling of 397801066828308 in words is "three hundred ninety-seven trillion, eight hundred one billion, sixty-six million, eight hundred twenty-eight thousand, three hundred eight".