46640004689 has 2 divisors, whose sum is σ = 46640004690. Its totient is φ = 46640004688.

The previous prime is 46640004571. The next prime is 46640004707. The reversal of 46640004689 is 98640004664.

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., 32945154064 + 13694850625 = 181508^2 + 117025^2 .

It is a cyclic number.

It is not a de Polignac number, because 46640004689 - 2¹⁶ = 46639939153 is a prime.

It is not a weakly prime, because it can be changed into another prime (46640004889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320002344 + 23320002345.

It is an arithmetic number, because the mean of its divisors is an integer number (23320002345).

Almost surely, 2^46640004689 is an apocalyptic number.

It is an amenable number.

46640004689 is a deficient number, since it is larger than the sum of its proper divisors (1).

46640004689 is an equidigital number, since it uses as much as digits as its factorization.

46640004689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 46640004689 in words is "forty-six billion, six hundred forty million, four thousand, six hundred eighty-nine".