117401776361609 has 2 divisors, whose sum is σ = 117401776361610. Its totient is φ = 117401776361608.

The previous prime is 117401776361501. The next prime is 117401776361627. The reversal of 117401776361609 is 906163677104711.

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., 110747672363584 + 6654103998025 = 10523672^2 + 2579555^2 .

It is a cyclic number.

It is not a de Polignac number, because 117401776361609 - 2¹² = 117401776357513 is a prime.

It is a super-2 number, since 2×117401776361609² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (117401776361689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58700888180804 + 58700888180805.

It is an arithmetic number, because the mean of its divisors is an integer number (58700888180805).

Almost surely, 2^{117401776361609} is an apocalyptic number.

It is an amenable number.

117401776361609 is a deficient number, since it is larger than the sum of its proper divisors (1).

117401776361609 is an equidigital number, since it uses as much as digits as its factorization.

117401776361609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8001504, while the sum is 59.

The spelling of 117401776361609 in words is "one hundred seventeen trillion, four hundred one billion, seven hundred seventy-six million, three hundred sixty-one thousand, six hundred nine".