1161079017409 has 2 divisors, whose sum is σ = 1161079017410. Its totient is φ = 1161079017408.

The previous prime is 1161079017403. The next prime is 1161079017463. The reversal of 1161079017409 is 9047109701611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1004611303809 + 156467713600 = 1002303^2 + 395560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161079017409 - 2¹⁵ = 1161078984641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161079017403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580539508704 + 580539508705.

It is an arithmetic number, because the mean of its divisors is an integer number (580539508705).

Almost surely, 2^{1161079017409} is an apocalyptic number.

It is an amenable number.

1161079017409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161079017409 is an equidigital number, since it uses as much as digits as its factorization.

1161079017409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 95256, while the sum is 46.

The spelling of 1161079017409 in words is "one trillion, one hundred sixty-one billion, seventy-nine million, seventeen thousand, four hundred nine".