40808084777 has 4 divisors (see below), whose sum is σ = 40810544640. Its totient is φ = 40805624916.

The previous prime is 40808084749. The next prime is 40808084827. The reversal of 40808084777 is 77748080804.

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 40808084777 - 2⁸ = 40808084521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40808084717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204877 + ... + 1238282.

It is an arithmetic number, because the mean of its divisors is an integer number (10202636160).

Almost surely, 2^40808084777 is an apocalyptic number.

It is an amenable number.

40808084777 is a deficient number, since it is larger than the sum of its proper divisors (2459863).

40808084777 is a wasteful number, since it uses less digits than its factorization.

40808084777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459862.

The product of its (nonzero) digits is 2809856, while the sum is 53.

The spelling of 40808084777 in words is "forty billion, eight hundred eight million, eighty-four thousand, seven hundred seventy-seven".