40136134079 has 2 divisors, whose sum is σ = 40136134080. Its totient is φ = 40136134078.

The previous prime is 40136134063. The next prime is 40136134187. The reversal of 40136134079 is 97043163104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40136134079 - 2⁴ = 40136134063 is a prime.

It is a super-2 number, since 2×40136134079² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40136134019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068067039 + 20068067040.

It is an arithmetic number, because the mean of its divisors is an integer number (20068067040).

Almost surely, 2^40136134079 is an apocalyptic number.

40136134079 is a deficient number, since it is larger than the sum of its proper divisors (1).

40136134079 is an equidigital number, since it uses as much as digits as its factorization.

40136134079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 40136134079 in words is "forty billion, one hundred thirty-six million, one hundred thirty-four thousand, seventy-nine".