40478362500539 has 2 divisors, whose sum is σ = 40478362500540. Its totient is φ = 40478362500538.

The previous prime is 40478362500497. The next prime is 40478362500551. The reversal of 40478362500539 is 93500526387404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40478362500539 is a prime.

It is not a weakly prime, because it can be changed into another prime (40478365500539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20239181250269 + 20239181250270.

It is an arithmetic number, because the mean of its divisors is an integer number (20239181250270).

Almost surely, 2^{40478362500539} is an apocalyptic number.

40478362500539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40478362500539 is an equidigital number, since it uses as much as digits as its factorization.

40478362500539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 40478362500539 in words is "forty trillion, four hundred seventy-eight billion, three hundred sixty-two million, five hundred thousand, five hundred thirty-nine".