40349417513 has 2 divisors, whose sum is σ = 40349417514. Its totient is φ = 40349417512.

The previous prime is 40349417461. The next prime is 40349417527. The reversal of 40349417513 is 31571494304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26779031449 + 13570386064 = 163643^2 + 116492^2 .

It is a cyclic number.

It is not a de Polignac number, because 40349417513 - 2²⁰ = 40348368937 is a prime.

It is a super-2 number, since 2×40349417513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40349417543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20174708756 + 20174708757.

It is an arithmetic number, because the mean of its divisors is an integer number (20174708757).

Almost surely, 2^40349417513 is an apocalyptic number.

It is an amenable number.

40349417513 is a deficient number, since it is larger than the sum of its proper divisors (1).

40349417513 is an equidigital number, since it uses as much as digits as its factorization.

40349417513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 40349417513 in words is "forty billion, three hundred forty-nine million, four hundred seventeen thousand, five hundred thirteen".