40991322690883 has 2 divisors, whose sum is σ = 40991322690884. Its totient is φ = 40991322690882.

The previous prime is 40991322690869. The next prime is 40991322690949. The reversal of 40991322690883 is 38809622319904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40991322690883 - 2¹³ = 40991322682691 is a prime.

It is not a weakly prime, because it can be changed into another prime (40991322690823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20495661345441 + 20495661345442.

It is an arithmetic number, because the mean of its divisors is an integer number (20495661345442).

Almost surely, 2^{40991322690883} is an apocalyptic number.

40991322690883 is a deficient number, since it is larger than the sum of its proper divisors (1).

40991322690883 is an equidigital number, since it uses as much as digits as its factorization.

40991322690883 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40310784, while the sum is 64.

The spelling of 40991322690883 in words is "forty trillion, nine hundred ninety-one billion, three hundred twenty-two million, six hundred ninety thousand, eight hundred eighty-three".