11758767959261 has 2 divisors, whose sum is σ = 11758767959262. Its totient is φ = 11758767959260.

The previous prime is 11758767959221. The next prime is 11758767959321. The reversal of 11758767959261 is 16295976785711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11758767959236 + 25 = 3429106^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11758767959261 is a prime.

It is a super-2 number, since 2×11758767959261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11758767959221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5879383979630 + 5879383979631.

It is an arithmetic number, because the mean of its divisors is an integer number (5879383979631).

Almost surely, 2^{11758767959261} is an apocalyptic number.

It is an amenable number.

11758767959261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11758767959261 is an equidigital number, since it uses as much as digits as its factorization.

11758767959261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 400075200, while the sum is 74.

The spelling of 11758767959261 in words is "eleven trillion, seven hundred fifty-eight billion, seven hundred sixty-seven million, nine hundred fifty-nine thousand, two hundred sixty-one".