40420046047 has 2 divisors, whose sum is σ = 40420046048. Its totient is φ = 40420046046.

The previous prime is 40420046011. The next prime is 40420046059. The reversal of 40420046047 is 74064002404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40420046047 - 2¹⁵ = 40420013279 is a prime.

It is a super-3 number, since 3×40420046047³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40420046647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20210023023 + 20210023024.

It is an arithmetic number, because the mean of its divisors is an integer number (20210023024).

Almost surely, 2^40420046047 is an apocalyptic number.

40420046047 is a deficient number, since it is larger than the sum of its proper divisors (1).

40420046047 is an equidigital number, since it uses as much as digits as its factorization.

40420046047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 40420046047 in words is "forty billion, four hundred twenty million, forty-six thousand, forty-seven".