697268736049 has 2 divisors, whose sum is σ = 697268736050. Its totient is φ = 697268736048.

The previous prime is 697268735963. The next prime is 697268736061. The reversal of 697268736049 is 940637862796.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462182425600 + 235086310449 = 679840^2 + 484857^2 .

It is a cyclic number.

It is not a de Polignac number, because 697268736049 - 2²⁷ = 697134518321 is a prime.

It is not a weakly prime, because it can be changed into another prime (697268736649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348634368024 + 348634368025.

It is an arithmetic number, because the mean of its divisors is an integer number (348634368025).

Almost surely, 2^697268736049 is an apocalyptic number.

It is an amenable number.

697268736049 is a deficient number, since it is larger than the sum of its proper divisors (1).

697268736049 is an equidigital number, since it uses as much as digits as its factorization.

697268736049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164602368, while the sum is 67.

The spelling of 697268736049 in words is "six hundred ninety-seven billion, two hundred sixty-eight million, seven hundred thirty-six thousand, forty-nine".