40471468729 has 2 divisors, whose sum is σ = 40471468730. Its totient is φ = 40471468728.

The previous prime is 40471468717. The next prime is 40471468747. The reversal of 40471468729 is 92786417404.

40471468729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35674521129 + 4796947600 = 188877^2 + 69260^2 .

It is a cyclic number.

It is not a de Polignac number, because 40471468729 - 2⁷ = 40471468601 is a prime.

It is not a weakly prime, because it can be changed into another prime (40471468769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20235734364 + 20235734365.

It is an arithmetic number, because the mean of its divisors is an integer number (20235734365).

Almost surely, 2^40471468729 is an apocalyptic number.

It is an amenable number.

40471468729 is a deficient number, since it is larger than the sum of its proper divisors (1).

40471468729 is an equidigital number, since it uses as much as digits as its factorization.

40471468729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 40471468729 in words is "forty billion, four hundred seventy-one million, four hundred sixty-eight thousand, seven hundred twenty-nine".