40478362500577 has 2 divisors, whose sum is σ = 40478362500578. Its totient is φ = 40478362500576.

The previous prime is 40478362500553. The next prime is 40478362500593. The reversal of 40478362500577 is 77500526387404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32605938645921 + 7872423854656 = 5710161^2 + 2805784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40478362500577 is a prime.

It is not a weakly prime, because it can be changed into another prime (40478362500977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20239181250288 + 20239181250289.

It is an arithmetic number, because the mean of its divisors is an integer number (20239181250289).

Almost surely, 2^{40478362500577} is an apocalyptic number.

It is an amenable number.

40478362500577 is a deficient number, since it is larger than the sum of its proper divisors (1).

40478362500577 is an equidigital number, since it uses as much as digits as its factorization.

40478362500577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 58.

The spelling of 40478362500577 in words is "forty trillion, four hundred seventy-eight billion, three hundred sixty-two million, five hundred thousand, five hundred seventy-seven".