23405461131617 has 2 divisors, whose sum is σ = 23405461131618. Its totient is φ = 23405461131616.

The previous prime is 23405461131587. The next prime is 23405461131659. The reversal of 23405461131617 is 71613116450432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15594727368256 + 7810733763361 = 3949016^2 + 2794769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23405461131617 is a prime.

It is a super-2 number, since 2×23405461131617² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23405461131677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702730565808 + 11702730565809.

It is an arithmetic number, because the mean of its divisors is an integer number (11702730565809).

Almost surely, 2^{23405461131617} is an apocalyptic number.

It is an amenable number.

23405461131617 is a deficient number, since it is larger than the sum of its proper divisors (1).

23405461131617 is an equidigital number, since it uses as much as digits as its factorization.

23405461131617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 23405461131617 in words is "twenty-three trillion, four hundred five billion, four hundred sixty-one million, one hundred thirty-one thousand, six hundred seventeen".