40928180617 has 4 divisors (see below), whose sum is σ = 42339497220. Its totient is φ = 39516864016.

The previous prime is 40928180567. The next prime is 40928180633. The reversal of 40928180617 is 71608182904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30561682761 + 10366497856 = 174819^2 + 101816^2 .

It is a cyclic number.

It is not a de Polignac number, because 40928180617 - 2²³ = 40919792009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40928180317) 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, 705658258 + ... + 705658315.

It is an arithmetic number, because the mean of its divisors is an integer number (10584874305).

Almost surely, 2^40928180617 is an apocalyptic number.

It is an amenable number.

40928180617 is a deficient number, since it is larger than the sum of its proper divisors (1411316603).

40928180617 is a wasteful number, since it uses less digits than its factorization.

40928180617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411316602.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 40928180617 in words is "forty billion, nine hundred twenty-eight million, one hundred eighty thousand, six hundred seventeen".