397737625485312 has 384 divisors, whose sum is σ = 1323486056755200. Its totient is φ = 112744449441792.

The previous prime is 397737625485223. The next prime is 397737625485341. The reversal of 397737625485312 is 213584526737793.

397737625485312 is a `hidden beast` number, since 3 + 9 + 7 + 7 + 3 + 7 + 62 + 548 + 5 + 3 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261418239 + ... + 262935297.

It is an arithmetic number, because the mean of its divisors is an integer number (3446578272800).

Almost surely, 2^{397737625485312} is an apocalyptic number.

397737625485312 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 397737625485312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661743028377600).

397737625485312 is an abundant number, since it is smaller than the sum of its proper divisors (925748431269888).

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

397737625485312 is a wasteful number, since it uses less digits than its factorization.

397737625485312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517229 (or 1517198 counting only the distinct ones).

The product of its digits is 1600300800, while the sum is 72.

The spelling of 397737625485312 in words is "three hundred ninety-seven trillion, seven hundred thirty-seven billion, six hundred twenty-five million, four hundred eighty-five thousand, three hundred twelve".