397869737132 has 48 divisors (see below), whose sum is σ = 840693288960. Its totient is φ = 161132849472.

The previous prime is 397869737131. The next prime is 397869737141. The reversal of 397869737132 is 231737968793.

It is not an unprimeable number, because it can be changed into a prime (397869737131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5174468 + ... + 5250795.

It is an arithmetic number, because the mean of its divisors is an integer number (17514443520).

Almost surely, 2^397869737132 is an apocalyptic number.

It is an amenable number.

397869737132 is an abundant number, since it is smaller than the sum of its proper divisors (442823551828).

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

397869737132 is a wasteful number, since it uses less digits than its factorization.

397869737132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10425350 (or 10425348 counting only the distinct ones).

The product of its digits is 72013536, while the sum is 65.

The spelling of 397869737132 in words is "three hundred ninety-seven billion, eight hundred sixty-nine million, seven hundred thirty-seven thousand, one hundred thirty-two".