397748509296 has 20 divisors (see below), whose sum is σ = 1027516982472. Its totient is φ = 132582836416.

The previous prime is 397748509283. The next prime is 397748509297. The reversal of 397748509296 is 692905847793.

It is a self number, because there is not a number n which added to its sum of digits gives 397748509296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397748509297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4143213591 + ... + 4143213686.

Almost surely, 2^397748509296 is an apocalyptic number.

It is an amenable number.

397748509296 is an abundant number, since it is smaller than the sum of its proper divisors (629768473176).

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

397748509296 is a wasteful number, since it uses less digits than its factorization.

397748509296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286427288 (or 8286427282 counting only the distinct ones).

The product of its (nonzero) digits is 205752960, while the sum is 69.

The spelling of 397748509296 in words is "three hundred ninety-seven billion, seven hundred forty-eight million, five hundred nine thousand, two hundred ninety-six".