743019215974397 has 2 divisors, whose sum is σ = 743019215974398. Its totient is φ = 743019215974396.

The previous prime is 743019215974393. The next prime is 743019215974403. The reversal of 743019215974397 is 793479512910347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381177634060441 + 361841581913956 = 19523771^2 + 19022134^2 .

It is a cyclic number.

It is not a de Polignac number, because 743019215974397 - 2² = 743019215974393 is a prime.

It is a super-2 number, since 2×743019215974397² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 743019215974397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743019215974393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371509607987198 + 371509607987199.

It is an arithmetic number, because the mean of its divisors is an integer number (371509607987199).

Almost surely, 2^{743019215974397} is an apocalyptic number.

It is an amenable number.

743019215974397 is a deficient number, since it is larger than the sum of its proper divisors (1).

743019215974397 is an equidigital number, since it uses as much as digits as its factorization.

743019215974397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360067680, while the sum is 71.

The spelling of 743019215974397 in words is "seven hundred forty-three trillion, nineteen billion, two hundred fifteen million, nine hundred seventy-four thousand, three hundred ninety-seven".