1279759634201 has 2 divisors, whose sum is σ = 1279759634202. Its totient is φ = 1279759634200.

The previous prime is 1279759634149. The next prime is 1279759634243. The reversal of 1279759634201 is 1024369579721.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1095478315801 + 184281318400 = 1046651^2 + 429280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1279759634201 - 2¹⁰ = 1279759633177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1279759634701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639879817100 + 639879817101.

It is an arithmetic number, because the mean of its divisors is an integer number (639879817101).

Almost surely, 2^{1279759634201} is an apocalyptic number.

It is an amenable number.

1279759634201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279759634201 is an equidigital number, since it uses as much as digits as its factorization.

1279759634201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 1279759634201 in words is "one trillion, two hundred seventy-nine billion, seven hundred fifty-nine million, six hundred thirty-four thousand, two hundred one".