40012451534513 has 2 divisors, whose sum is σ = 40012451534514. Its totient is φ = 40012451534512.

The previous prime is 40012451534507. The next prime is 40012451534551. The reversal of 40012451534513 is 31543515421004.

It is an a-pointer prime, because the next prime (40012451534551) can be obtained adding 40012451534513 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32173308311104 + 7839143223409 = 5672152^2 + 2799847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40012451534513 is a prime.

It is not a weakly prime, because it can be changed into another prime (40012451534213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20006225767256 + 20006225767257.

It is an arithmetic number, because the mean of its divisors is an integer number (20006225767257).

Almost surely, 2^{40012451534513} is an apocalyptic number.

It is an amenable number.

40012451534513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40012451534513 is an equidigital number, since it uses as much as digits as its factorization.

40012451534513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 40012451534513 its reverse (31543515421004), we get a palindrome (71555966955517).

The spelling of 40012451534513 in words is "forty trillion, twelve billion, four hundred fifty-one million, five hundred thirty-four thousand, five hundred thirteen".