397984567050 has 192 divisors, whose sum is σ = 1287210589440. Its totient is φ = 88509231360.

The previous prime is 397984567037. The next prime is 397984567051. The reversal of 397984567050 is 50765489793.

397984567050 is a `hidden beast` number, since 3 + 97 + 98 + 456 + 7 + 0 + 5 + 0 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (397984567051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 219469 + ... + 918768.

It is an arithmetic number, because the mean of its divisors is an integer number (6704221820).

Almost surely, 2^397984567050 is an apocalyptic number.

397984567050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

397984567050 is an abundant number, since it is smaller than the sum of its proper divisors (889226022390).

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

397984567050 is a wasteful number, since it uses less digits than its factorization.

397984567050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138302 (or 1138291 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 397984567050 in words is "three hundred ninety-seven billion, nine hundred eighty-four million, five hundred sixty-seven thousand, fifty".