397191213543 has 8 divisors (see below), whose sum is σ = 532098182656. Its totient is φ = 263539193400.

The previous prime is 397191213541. The next prime is 397191213589. The reversal of 397191213543 is 345312191793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397191213543 - 2¹ = 397191213541 is a prime.

It is a super-2 number, since 2×397191213543² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397191213492 and 397191213501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397191213541) by changing a digit.

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, 313736503 + ... + 313737768.

It is an arithmetic number, because the mean of its divisors is an integer number (66512272832).

Almost surely, 2^397191213543 is an apocalyptic number.

397191213543 is a deficient number, since it is larger than the sum of its proper divisors (134906969113).

397191213543 is a wasteful number, since it uses less digits than its factorization.

397191213543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627474485.

The product of its digits is 612360, while the sum is 48.

The spelling of 397191213543 in words is "three hundred ninety-seven billion, one hundred ninety-one million, two hundred thirteen thousand, five hundred forty-three".