397350862848 has 238 divisors, whose sum is σ = 1191641695754. Its totient is φ = 132434362368.

The previous prime is 397350862829. The next prime is 397350862877. The reversal of 397350862848 is 848268053793.

397350862848 is a `hidden beast` number, since 39 + 73 + 508 + 6 + 28 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 395630936064 + 1719926784 = 628992^2 + 41472^2 .

It is a super-2 number, since 2×397350862848² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 47771586 + ... + 47779902.

Almost surely, 2^397350862848 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 397350862848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595820847877).

397350862848 is an abundant number, since it is smaller than the sum of its proper divisors (794290832906).

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

397350862848 is an frugal number, since it uses more digits than its factorization.

397350862848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367 (or 8322 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 63.

The spelling of 397350862848 in words is "three hundred ninety-seven billion, three hundred fifty million, eight hundred sixty-two thousand, eight hundred forty-eight".