40464397380559 has 2 divisors, whose sum is σ = 40464397380560. Its totient is φ = 40464397380558.

The previous prime is 40464397380509. The next prime is 40464397380577. The reversal of 40464397380559 is 95508379346404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40464397380559 - 2⁹ = 40464397380047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40464397380494 and 40464397380503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40464397380509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20232198690279 + 20232198690280.

It is an arithmetic number, because the mean of its divisors is an integer number (20232198690280).

Almost surely, 2^{40464397380559} is an apocalyptic number.

40464397380559 is a deficient number, since it is larger than the sum of its proper divisors (1).

40464397380559 is an equidigital number, since it uses as much as digits as its factorization.

40464397380559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 391910400, while the sum is 67.

The spelling of 40464397380559 in words is "forty trillion, four hundred sixty-four billion, three hundred ninety-seven million, three hundred eighty thousand, five hundred fifty-nine".