731097196643 has 8 divisors (see below), whose sum is σ = 808486066416. Its totient is φ = 655529241600.

The previous prime is 731097196601. The next prime is 731097196649. The reversal of 731097196643 is 346691790137.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 731097196643 - 2⁶ = 731097196579 is a prime.

It is a super-2 number, since 2×731097196643² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731097196649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455227838 + ... + 455229443.

It is an arithmetic number, because the mean of its divisors is an integer number (101060758302).

Almost surely, 2^731097196643 is an apocalyptic number.

731097196643 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

731097196643 is a deficient number, since it is larger than the sum of its proper divisors (77388869773).

731097196643 is a wasteful number, since it uses less digits than its factorization.

731097196643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910457365.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 731097196643 in words is "seven hundred thirty-one billion, ninety-seven million, one hundred ninety-six thousand, six hundred forty-three".