40448471149 has 2 divisors, whose sum is σ = 40448471150. Its totient is φ = 40448471148.

The previous prime is 40448471039. The next prime is 40448471171. The reversal of 40448471149 is 94117484404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38561176900 + 1887294249 = 196370^2 + 43443^2 .

It is a cyclic number.

It is not a de Polignac number, because 40448471149 - 2¹⁷ = 40448340077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40448471099 and 40448471108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40548471149) 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 as a sum of consecutive naturals, namely, 20224235574 + 20224235575.

It is an arithmetic number, because the mean of its divisors is an integer number (20224235575).

Almost surely, 2^40448471149 is an apocalyptic number.

It is an amenable number.

40448471149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40448471149 is an equidigital number, since it uses as much as digits as its factorization.

40448471149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 40448471149 in words is "forty billion, four hundred forty-eight million, four hundred seventy-one thousand, one hundred forty-nine".