697197913251841 has 4 divisors (see below), whose sum is σ = 697198002107184. Its totient is φ = 697197824396500.

The previous prime is 697197913251787. The next prime is 697197913251869. The reversal of 697197913251841 is 148152319791796.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 697197913251841 - 2²⁵ = 697197879697409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697197913251341) 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 3 ways as a sum of consecutive naturals, for example, 31380895 + ... + 48776596.

It is an arithmetic number, because the mean of its divisors is an integer number (174299500526796).

Almost surely, 2^{697197913251841} is an apocalyptic number.

It is an amenable number.

697197913251841 is a deficient number, since it is larger than the sum of its proper divisors (88855343).

697197913251841 is an equidigital number, since it uses as much as digits as its factorization.

697197913251841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88855342.

The product of its digits is 205752960, while the sum is 73.

The spelling of 697197913251841 in words is "six hundred ninety-seven trillion, one hundred ninety-seven billion, nine hundred thirteen million, two hundred fifty-one thousand, eight hundred forty-one".