40830785857 has 16 divisors (see below), whose sum is σ = 44606298240. Its totient is φ = 37254418432.

The previous prime is 40830785839. The next prime is 40830785869. The reversal of 40830785857 is 75858703804.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40830785857 - 2¹¹ = 40830783809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40830785798 and 40830785807.

It is not an unprimeable number, because it can be changed into a prime (40830785887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313408 + ... + 424129.

It is an arithmetic number, because the mean of its divisors is an integer number (2787893640).

Almost surely, 2^40830785857 is an apocalyptic number.

It is an amenable number.

40830785857 is a deficient number, since it is larger than the sum of its proper divisors (3775512383).

40830785857 is a wasteful number, since it uses less digits than its factorization.

40830785857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737672.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 40830785857 in words is "forty billion, eight hundred thirty million, seven hundred eighty-five thousand, eight hundred fifty-seven".