40844556817 has 8 divisors (see below), whose sum is σ = 42574562816. Its totient is φ = 39147503472.

The previous prime is 40844556811. The next prime is 40844556827. The reversal of 40844556817 is 71865544804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40844556817 - 2¹¹ = 40844554769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40844556811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8235633 + ... + 8240590.

It is an arithmetic number, because the mean of its divisors is an integer number (5321820352).

Almost surely, 2^40844556817 is an apocalyptic number.

It is an amenable number.

40844556817 is a deficient number, since it is larger than the sum of its proper divisors (1730005999).

40844556817 is a wasteful number, since it uses less digits than its factorization.

40844556817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16476327.

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 40844556817 in words is "forty billion, eight hundred forty-four million, five hundred fifty-six thousand, eight hundred seventeen".