40533732091 has 2 divisors, whose sum is σ = 40533732092. Its totient is φ = 40533732090.

The previous prime is 40533732073. The next prime is 40533732103. The reversal of 40533732091 is 19023733504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40533732091 - 2⁵ = 40533732059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40533732091.

It is not a weakly prime, because it can be changed into another prime (40533735091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20266866045 + 20266866046.

It is an arithmetic number, because the mean of its divisors is an integer number (20266866046).

Almost surely, 2^40533732091 is an apocalyptic number.

40533732091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40533732091 is an equidigital number, since it uses as much as digits as its factorization.

40533732091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 40533732091 in words is "forty billion, five hundred thirty-three million, seven hundred thirty-two thousand, ninety-one".