40105464193 has 2 divisors, whose sum is σ = 40105464194. Its totient is φ = 40105464192.

The previous prime is 40105464149. The next prime is 40105464209. The reversal of 40105464193 is 39146450104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37501097104 + 2604367089 = 193652^2 + 51033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40105464193 is a prime.

It is not a weakly prime, because it can be changed into another prime (40105462193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20052732096 + 20052732097.

It is an arithmetic number, because the mean of its divisors is an integer number (20052732097).

Almost surely, 2^40105464193 is an apocalyptic number.

It is an amenable number.

40105464193 is a deficient number, since it is larger than the sum of its proper divisors (1).

40105464193 is an equidigital number, since it uses as much as digits as its factorization.

40105464193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 40105464193 in words is "forty billion, one hundred five million, four hundred sixty-four thousand, one hundred ninety-three".