40771066777 has 4 divisors (see below), whose sum is σ = 46595504896. Its totient is φ = 34946628660.

The previous prime is 40771066747. The next prime is 40771066789. The reversal of 40771066777 is 77766017704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40771066777 - 2⁷ = 40771066649 is a prime.

It is a super-2 number, since 2×40771066777² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40771066747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912219049 + ... + 2912219062.

It is an arithmetic number, because the mean of its divisors is an integer number (11648876224).

Almost surely, 2^40771066777 is an apocalyptic number.

It is an amenable number.

40771066777 is a deficient number, since it is larger than the sum of its proper divisors (5824438119).

40771066777 is an equidigital number, since it uses as much as digits as its factorization.

40771066777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824438118.

The product of its (nonzero) digits is 2420208, while the sum is 52.

The spelling of 40771066777 in words is "forty billion, seven hundred seventy-one million, sixty-six thousand, seven hundred seventy-seven".