397150786133 has 4 divisors (see below), whose sum is σ = 420512597100. Its totient is φ = 373788975168.

The previous prime is 397150786129. The next prime is 397150786177. The reversal of 397150786133 is 331687051793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185401719889 + 211749066244 = 430583^2 + 460162^2 .

It is a cyclic number.

It is not a de Polignac number, because 397150786133 - 2² = 397150786129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397150786633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11680905458 + ... + 11680905491.

It is an arithmetic number, because the mean of its divisors is an integer number (105128149275).

Almost surely, 2^397150786133 is an apocalyptic number.

It is an amenable number.

397150786133 is a deficient number, since it is larger than the sum of its proper divisors (23361810967).

397150786133 is a wasteful number, since it uses less digits than its factorization.

397150786133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23361810966.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 397150786133 in words is "three hundred ninety-seven billion, one hundred fifty million, seven hundred eighty-six thousand, one hundred thirty-three".