46646486869 has 2 divisors, whose sum is σ = 46646486870. Its totient is φ = 46646486868.

The previous prime is 46646486867. The next prime is 46646486879. The reversal of 46646486869 is 96868464664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41769140625 + 4877346244 = 204375^2 + 69838^2 .

It is a cyclic number.

It is not a de Polignac number, because 46646486869 - 2¹ = 46646486867 is a prime.

It is a super-2 number, since 2×46646486869² (a number of 22 digits) contains 22 as substring.

Together with 46646486867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46646486867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23323243434 + 23323243435.

It is an arithmetic number, because the mean of its divisors is an integer number (23323243435).

Almost surely, 2^46646486869 is an apocalyptic number.

It is an amenable number.

46646486869 is a deficient number, since it is larger than the sum of its proper divisors (1).

46646486869 is an equidigital number, since it uses as much as digits as its factorization.

46646486869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 286654464, while the sum is 67.

The spelling of 46646486869 in words is "forty-six billion, six hundred forty-six million, four hundred eighty-six thousand, eight hundred sixty-nine".