40531635191 has 2 divisors, whose sum is σ = 40531635192. Its totient is φ = 40531635190.

The previous prime is 40531635143. The next prime is 40531635211. The reversal of 40531635191 is 19153613504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40531635191 - 2¹⁰ = 40531634167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40531635101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20265817595 + 20265817596.

It is an arithmetic number, because the mean of its divisors is an integer number (20265817596).

Almost surely, 2^40531635191 is an apocalyptic number.

40531635191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40531635191 is an equidigital number, since it uses as much as digits as its factorization.

40531635191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 40531635191 in words is "forty billion, five hundred thirty-one million, six hundred thirty-five thousand, one hundred ninety-one".