40402033405091 has 2 divisors, whose sum is σ = 40402033405092. Its totient is φ = 40402033405090.

The previous prime is 40402033405087. The next prime is 40402033405103. The reversal of 40402033405091 is 19050433020404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40402033405091 - 2² = 40402033405087 is a prime.

It is not a weakly prime, because it can be changed into another prime (40402033485091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201016702545 + 20201016702546.

It is an arithmetic number, because the mean of its divisors is an integer number (20201016702546).

Almost surely, 2^{40402033405091} is an apocalyptic number.

40402033405091 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402033405091 is an equidigital number, since it uses as much as digits as its factorization.

40402033405091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 40402033405091 its reverse (19050433020404), we get a palindrome (59452466425495).

The spelling of 40402033405091 in words is "forty trillion, four hundred two billion, thirty-three million, four hundred five thousand, ninety-one".