397801066828309 has 8 divisors (see below), whose sum is σ = 398232855115200. Its totient is φ = 397369328895936.

The previous prime is 397801066828303. The next prime is 397801066828391. The reversal of 397801066828309 is 903828660108793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 397801066828309 - 2³¹ = 397798919344661 is a prime.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3230742 + ... + 28390840.

It is an arithmetic number, because the mean of its divisors is an integer number (49779106889400).

Almost surely, 2^{397801066828309} is an apocalyptic number.

It is an amenable number.

397801066828309 is a deficient number, since it is larger than the sum of its proper divisors (431788286891).

397801066828309 is a wasteful number, since it uses less digits than its factorization.

397801066828309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25177259.

The product of its (nonzero) digits is 188116992, while the sum is 70.

The spelling of 397801066828309 in words is "three hundred ninety-seven trillion, eight hundred one billion, sixty-six million, eight hundred twenty-eight thousand, three hundred nine".