40549354663 has 2 divisors, whose sum is σ = 40549354664. Its totient is φ = 40549354662.

The previous prime is 40549354627. The next prime is 40549354687. The reversal of 40549354663 is 36645394504.

40549354663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40549354663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40546354663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20274677331 + 20274677332.

It is an arithmetic number, because the mean of its divisors is an integer number (20274677332).

Almost surely, 2^40549354663 is an apocalyptic number.

40549354663 is a deficient number, since it is larger than the sum of its proper divisors (1).

40549354663 is an equidigital number, since it uses as much as digits as its factorization.

40549354663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 40549354663 in words is "forty billion, five hundred forty-nine million, three hundred fifty-four thousand, six hundred sixty-three".