40431240463 has 2 divisors, whose sum is σ = 40431240464. Its totient is φ = 40431240462.

The previous prime is 40431240433. The next prime is 40431240467. The reversal of 40431240463 is 36404213404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40431240463 - 2²¹ = 40429143311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40431240467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215620231 + 20215620232.

It is an arithmetic number, because the mean of its divisors is an integer number (20215620232).

Almost surely, 2^40431240463 is an apocalyptic number.

40431240463 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431240463 is an equidigital number, since it uses as much as digits as its factorization.

40431240463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 40431240463 its reverse (36404213404), we get a palindrome (76835453867).

The spelling of 40431240463 in words is "forty billion, four hundred thirty-one million, two hundred forty thousand, four hundred sixty-three".