40736185717613 has 2 divisors, whose sum is σ = 40736185717614. Its totient is φ = 40736185717612.

The previous prime is 40736185717573. The next prime is 40736185717621. The reversal of 40736185717613 is 31671758163704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27122461973929 + 13613723743684 = 5207923^2 + 3689678^2 .

It is a cyclic number.

It is not a de Polignac number, because 40736185717613 - 2¹⁴ = 40736185701229 is a prime.

It is a super-3 number, since 3×40736185717613³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40736185717813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20368092858806 + 20368092858807.

It is an arithmetic number, because the mean of its divisors is an integer number (20368092858807).

Almost surely, 2^{40736185717613} is an apocalyptic number.

It is an amenable number.

40736185717613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40736185717613 is an equidigital number, since it uses as much as digits as its factorization.

40736185717613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 59.

The spelling of 40736185717613 in words is "forty trillion, seven hundred thirty-six billion, one hundred eighty-five million, seven hundred seventeen thousand, six hundred thirteen".