40836240858709 has 2 divisors, whose sum is σ = 40836240858710. Its totient is φ = 40836240858708.

The previous prime is 40836240858661. The next prime is 40836240858713. The reversal of 40836240858709 is 90785804263804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39632338158084 + 1203902700625 = 6295422^2 + 1097225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40836240858709 is a prime.

It is a super-2 number, since 2×40836240858709² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40836240858719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20418120429354 + 20418120429355.

It is an arithmetic number, because the mean of its divisors is an integer number (20418120429355).

Almost surely, 2^{40836240858709} is an apocalyptic number.

It is an amenable number.

40836240858709 is a deficient number, since it is larger than the sum of its proper divisors (1).

40836240858709 is an equidigital number, since it uses as much as digits as its factorization.

40836240858709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 40836240858709 in words is "forty trillion, eight hundred thirty-six billion, two hundred forty million, eight hundred fifty-eight thousand, seven hundred nine".