40478362500553 has 2 divisors, whose sum is σ = 40478362500554. Its totient is φ = 40478362500552.

The previous prime is 40478362500551. The next prime is 40478362500577. The reversal of 40478362500553 is 35500526387404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39170111511609 + 1308250988944 = 6258603^2 + 1143788^2 .

It is a cyclic number.

It is not a de Polignac number, because 40478362500553 - 2¹ = 40478362500551 is a prime.

Together with 40478362500551, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40478362500553.

It is not a weakly prime, because it can be changed into another prime (40478362500551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20239181250276 + 20239181250277.

It is an arithmetic number, because the mean of its divisors is an integer number (20239181250277).

Almost surely, 2^{40478362500553} is an apocalyptic number.

It is an amenable number.

40478362500553 is a deficient number, since it is larger than the sum of its proper divisors (1).

40478362500553 is an equidigital number, since it uses as much as digits as its factorization.

40478362500553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 52.

Adding to 40478362500553 its reverse (35500526387404), we get a palindrome (75978888887957).

The spelling of 40478362500553 in words is "forty trillion, four hundred seventy-eight billion, three hundred sixty-two million, five hundred thousand, five hundred fifty-three".