46640664193 has 2 divisors, whose sum is σ = 46640664194. Its totient is φ = 46640664192.

The previous prime is 46640664137. The next prime is 46640664199. The reversal of 46640664193 is 39146604664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23781340944 + 22859323249 = 154212^2 + 151193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46640664193 is a prime.

It is not a weakly prime, because it can be changed into another prime (46640664199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23320332096 + 23320332097.

It is an arithmetic number, because the mean of its divisors is an integer number (23320332097).

Almost surely, 2^46640664193 is an apocalyptic number.

It is an amenable number.

46640664193 is a deficient number, since it is larger than the sum of its proper divisors (1).

46640664193 is an equidigital number, since it uses as much as digits as its factorization.

46640664193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 46640664193 in words is "forty-six billion, six hundred forty million, six hundred sixty-four thousand, one hundred ninety-three".