40326115091 has 2 divisors, whose sum is σ = 40326115092. Its totient is φ = 40326115090.

The previous prime is 40326115079. The next prime is 40326115099. The reversal of 40326115091 is 19051162304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40326115091 - 2³⁰ = 39252373267 is a prime.

It is not a weakly prime, because it can be changed into another prime (40326115099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20163057545 + 20163057546.

It is an arithmetic number, because the mean of its divisors is an integer number (20163057546).

Almost surely, 2^40326115091 is an apocalyptic number.

40326115091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40326115091 is an equidigital number, since it uses as much as digits as its factorization.

40326115091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 40326115091 its reverse (19051162304), we get a palindrome (59377277395).

The spelling of 40326115091 in words is "forty billion, three hundred twenty-six million, one hundred fifteen thousand, ninety-one".