696125745409 has 2 divisors, whose sum is σ = 696125745410. Its totient is φ = 696125745408.

The previous prime is 696125745401. The next prime is 696125745529. The reversal of 696125745409 is 904547521696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664396161025 + 31729584384 = 815105^2 + 178128^2 .

It is a cyclic number.

It is not a de Polignac number, because 696125745409 - 2³ = 696125745401 is a prime.

It is not a weakly prime, because it can be changed into another prime (696125745401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348062872704 + 348062872705.

It is an arithmetic number, because the mean of its divisors is an integer number (348062872705).

Almost surely, 2^696125745409 is an apocalyptic number.

It is an amenable number.

696125745409 is a deficient number, since it is larger than the sum of its proper divisors (1).

696125745409 is an equidigital number, since it uses as much as digits as its factorization.

696125745409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 696125745409 in words is "six hundred ninety-six billion, one hundred twenty-five million, seven hundred forty-five thousand, four hundred nine".