40315010693 has 2 divisors, whose sum is σ = 40315010694. Its totient is φ = 40315010692.

The previous prime is 40315010633. The next prime is 40315010737. The reversal of 40315010693 is 39601051304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27296657089 + 13018353604 = 165217^2 + 114098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40315010693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40315010633) 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, 20157505346 + 20157505347.

It is an arithmetic number, because the mean of its divisors is an integer number (20157505347).

Almost surely, 2^40315010693 is an apocalyptic number.

It is an amenable number.

40315010693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40315010693 is an equidigital number, since it uses as much as digits as its factorization.

40315010693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

Adding to 40315010693 its reverse (39601051304), we get a palindrome (79916061997).

The spelling of 40315010693 in words is "forty billion, three hundred fifteen million, ten thousand, six hundred ninety-three".