40040451263 has 2 divisors, whose sum is σ = 40040451264. Its totient is φ = 40040451262.

The previous prime is 40040451151. The next prime is 40040451281. The reversal of 40040451263 is 36215404004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40040451263 - 2¹⁰ = 40040450239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40040451863) 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, 20020225631 + 20020225632.

It is an arithmetic number, because the mean of its divisors is an integer number (20020225632).

Almost surely, 2^40040451263 is an apocalyptic number.

40040451263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40040451263 is an equidigital number, since it uses as much as digits as its factorization.

40040451263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 40040451263 its reverse (36215404004), we get a palindrome (76255855267).

The spelling of 40040451263 in words is "forty billion, forty million, four hundred fifty-one thousand, two hundred sixty-three".