40219109093 has 2 divisors, whose sum is σ = 40219109094. Its totient is φ = 40219109092.

The previous prime is 40219109089. The next prime is 40219109129. The reversal of 40219109093 is 39090191204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26018335204 + 14200773889 = 161302^2 + 119167^2 .

It is a cyclic number.

It is not a de Polignac number, because 40219109093 - 2² = 40219109089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40219109053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20109554546 + 20109554547.

It is an arithmetic number, because the mean of its divisors is an integer number (20109554547).

Almost surely, 2^40219109093 is an apocalyptic number.

It is an amenable number.

40219109093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40219109093 is an equidigital number, since it uses as much as digits as its factorization.

40219109093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 40219109093 in words is "forty billion, two hundred nineteen million, one hundred nine thousand, ninety-three".