397734745259 has 4 divisors (see below), whose sum is σ = 398270055216. Its totient is φ = 397199435304.

The previous prime is 397734745241. The next prime is 397734745297. The reversal of 397734745259 is 952547437793.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397734745259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397734745195 and 397734745204.

It is not an unprimeable number, because it can be changed into a prime (397734745229) 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, 267653864 + ... + 267655349.

It is an arithmetic number, because the mean of its divisors is an integer number (99567513804).

Almost surely, 2^397734745259 is an apocalyptic number.

397734745259 is a deficient number, since it is larger than the sum of its proper divisors (535309957).

397734745259 is an equidigital number, since it uses as much as digits as its factorization.

397734745259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535309956.

The product of its digits is 200037600, while the sum is 65.

The spelling of 397734745259 in words is "three hundred ninety-seven billion, seven hundred thirty-four million, seven hundred forty-five thousand, two hundred fifty-nine".