397133433680 has 40 divisors (see below), whose sum is σ = 925477622784. Its totient is φ = 158484790400.

The previous prime is 397133433677. The next prime is 397133433709. The reversal of 397133433680 is 86334331793.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5724416 + ... + 5793375.

Almost surely, 2^397133433680 is an apocalyptic number.

It is an amenable number.

397133433680 is an abundant number, since it is smaller than the sum of its proper divisors (528344189104).

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

397133433680 is a wasteful number, since it uses less digits than its factorization.

397133433680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11518235 (or 11518229 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 50.

The spelling of 397133433680 in words is "three hundred ninety-seven billion, one hundred thirty-three million, four hundred thirty-three thousand, six hundred eighty".