40137423168329 has 4 divisors (see below), whose sum is σ = 40158208992720. Its totient is φ = 40116637343940.

The previous prime is 40137423168319. The next prime is 40137423168419. The reversal of 40137423168329 is 92386132473104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40137423168329 is a prime.

It is a super-2 number, since 2×40137423168329² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40137423168319) 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 in 3 ways as a sum of consecutive naturals, for example, 10392909299 + ... + 10392913160.

It is an arithmetic number, because the mean of its divisors is an integer number (10039552248180).

Almost surely, 2^{40137423168329} is an apocalyptic number.

It is an amenable number.

40137423168329 is a deficient number, since it is larger than the sum of its proper divisors (20785824391).

40137423168329 is a wasteful number, since it uses less digits than its factorization.

40137423168329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20785824390.

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 40137423168329 in words is "forty trillion, one hundred thirty-seven billion, four hundred twenty-three million, one hundred sixty-eight thousand, three hundred twenty-nine".