397231199712 has 192 divisors, whose sum is σ = 1221114182400. Its totient is φ = 125282557440.

The previous prime is 397231199689. The next prime is 397231199753. The reversal of 397231199712 is 217991132793.

397231199712 is a `hidden beast` number, since 397 + 231 + 1 + 9 + 9 + 7 + 12 = 666.

It is a hoax number, since the sum of its digits (54) 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 (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13298458 + ... + 13328294.

It is an arithmetic number, because the mean of its divisors is an integer number (6359969700).

Almost surely, 2^397231199712 is an apocalyptic number.

397231199712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397231199712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610557091200).

397231199712 is an abundant number, since it is smaller than the sum of its proper divisors (823882982688).

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

397231199712 is a wasteful number, since it uses less digits than its factorization.

397231199712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30686 (or 30672 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The spelling of 397231199712 in words is "three hundred ninety-seven billion, two hundred thirty-one million, one hundred ninety-nine thousand, seven hundred twelve".