40040040463 has 2 divisors, whose sum is σ = 40040040464. Its totient is φ = 40040040462.

The previous prime is 40040040461. The next prime is 40040040529. The reversal of 40040040463 is 36404004004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40040040463 - 2¹ = 40040040461 is a prime.

Together with 40040040461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40040040461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020020231 + 20020020232.

It is an arithmetic number, because the mean of its divisors is an integer number (20020020232).

Almost surely, 2^40040040463 is an apocalyptic number.

40040040463 is a deficient number, since it is larger than the sum of its proper divisors (1).

40040040463 is an equidigital number, since it uses as much as digits as its factorization.

40040040463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40040040463 its reverse (36404004004), we get a palindrome (76444044467).

The spelling of 40040040463 in words is "forty billion, forty million, forty thousand, four hundred sixty-three".