397568129112 has 576 divisors, whose sum is σ = 1452114462240. Its totient is φ = 96832512000.

The previous prime is 397568129107. The next prime is 397568129131. The reversal of 397568129112 is 211921865793.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 209135362 + ... + 209137262.

Almost surely, 2^397568129112 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 397568129112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726057231120).

397568129112 is an abundant number, since it is smaller than the sum of its proper divisors (1054546333128).

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

397568129112 is a wasteful number, since it uses less digits than its factorization.

397568129112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 2258 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 397568129112 in words is "three hundred ninety-seven billion, five hundred sixty-eight million, one hundred twenty-nine thousand, one hundred twelve".