40164379271 has 2 divisors, whose sum is σ = 40164379272. Its totient is φ = 40164379270.

The previous prime is 40164379261. The next prime is 40164379301. The reversal of 40164379271 is 17297346104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40164379271 - 2⁶ = 40164379207 is a prime.

It is a super-2 number, since 2×40164379271² (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 (40164379261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20082189635 + 20082189636.

It is an arithmetic number, because the mean of its divisors is an integer number (20082189636).

Almost surely, 2^40164379271 is an apocalyptic number.

40164379271 is a deficient number, since it is larger than the sum of its proper divisors (1).

40164379271 is an equidigital number, since it uses as much as digits as its factorization.

40164379271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 40164379271 in words is "forty billion, one hundred sixty-four million, three hundred seventy-nine thousand, two hundred seventy-one".