40819671149 has 2 divisors, whose sum is σ = 40819671150. Its totient is φ = 40819671148.

The previous prime is 40819671119. The next prime is 40819671163. The reversal of 40819671149 is 94117691804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40785822025 + 33849124 = 201955^2 + 5818^2 .

It is a cyclic number.

It is not a de Polignac number, because 40819671149 - 2¹⁶ = 40819605613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40819671097 and 40819671106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40819671119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20409835574 + 20409835575.

It is an arithmetic number, because the mean of its divisors is an integer number (20409835575).

Almost surely, 2^40819671149 is an apocalyptic number.

It is an amenable number.

40819671149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40819671149 is an equidigital number, since it uses as much as digits as its factorization.

40819671149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 40819671149 in words is "forty billion, eight hundred nineteen million, six hundred seventy-one thousand, one hundred forty-nine".