397294246345 has 16 divisors (see below), whose sum is σ = 505892450448. Its totient is φ = 298490275840.

The previous prime is 397294246333. The next prime is 397294246351. The reversal of 397294246345 is 543642492793.

It can be written as a sum of positive squares in 8 ways, for example, as 3678543801 + 393615702544 = 60651^2 + 627388^2 .

It is not a de Polignac number, because 397294246345 - 2⁹ = 397294245833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397294246345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5030284 + ... + 5108653.

It is an arithmetic number, because the mean of its divisors is an integer number (31618278153).

Almost surely, 2^397294246345 is an apocalyptic number.

It is an amenable number.

397294246345 is a deficient number, since it is larger than the sum of its proper divisors (108598204103).

397294246345 is a wasteful number, since it uses less digits than its factorization.

397294246345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139420.

The product of its digits is 39191040, while the sum is 58.

The spelling of 397294246345 in words is "three hundred ninety-seven billion, two hundred ninety-four million, two hundred forty-six thousand, three hundred forty-five".