28693612590757 has 2 divisors, whose sum is σ = 28693612590758. Its totient is φ = 28693612590756.

The previous prime is 28693612590749. The next prime is 28693612590779. The reversal of 28693612590757 is 75709521639682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24394600149921 + 4299012440836 = 4939089^2 + 2073406^2 .

It is a cyclic number.

It is not a de Polignac number, because 28693612590757 - 2³ = 28693612590749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28693612590157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14346806295378 + 14346806295379.

It is an arithmetic number, because the mean of its divisors is an integer number (14346806295379).

Almost surely, 2^{28693612590757} is an apocalyptic number.

It is an amenable number.

28693612590757 is a deficient number, since it is larger than the sum of its proper divisors (1).

28693612590757 is an equidigital number, since it uses as much as digits as its factorization.

28693612590757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 342921600, while the sum is 70.

The spelling of 28693612590757 in words is "twenty-eight trillion, six hundred ninety-three billion, six hundred twelve million, five hundred ninety thousand, seven hundred fifty-seven".