11489176961 has 2 divisors, whose sum is σ = 11489176962. Its totient is φ = 11489176960.

The previous prime is 11489176801. The next prime is 11489176981. The reversal of 11489176961 is 16967198411.

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., 11295438400 + 193738561 = 106280^2 + 13919^2 .

It is a cyclic number.

It is not a de Polignac number, because 11489176961 - 2¹⁴ = 11489160577 is a prime.

It is not a weakly prime, because it can be changed into another prime (11489176981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5744588480 + 5744588481.

It is an arithmetic number, because the mean of its divisors is an integer number (5744588481).

Almost surely, 2^11489176961 is an apocalyptic number.

It is an amenable number.

11489176961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11489176961 is an equidigital number, since it uses as much as digits as its factorization.

11489176961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 53.

The spelling of 11489176961 in words is "eleven billion, four hundred eighty-nine million, one hundred seventy-six thousand, nine hundred sixty-one".