40771487329 has 4 divisors (see below), whose sum is σ = 40781173680. Its totient is φ = 40761800980.

The previous prime is 40771487249. The next prime is 40771487363. The reversal of 40771487329 is 92378417704.

It is a happy number.

40771487329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 40771487329 - 2¹⁷ = 40771356257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40771487429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4836859 + ... + 4845280.

It is an arithmetic number, because the mean of its divisors is an integer number (10195293420).

Almost surely, 2^40771487329 is an apocalyptic number.

It is an amenable number.

40771487329 is a deficient number, since it is larger than the sum of its proper divisors (9686351).

40771487329 is an equidigital number, since it uses as much as digits as its factorization.

40771487329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9686350.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 40771487329 in words is "forty billion, seven hundred seventy-one million, four hundred eighty-seven thousand, three hundred twenty-nine".