4000860870909 has 32 divisors (see below), whose sum is σ = 6211412121600. Its totient is φ = 2243502610752.

The previous prime is 4000860870857. The next prime is 4000860870913. The reversal of 4000860870909 is 9090780680004.

It is a happy number.

It is not a de Polignac number, because 4000860870909 - 2⁷ = 4000860870781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000860870959) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7442937 + ... + 7962350.

It is an arithmetic number, because the mean of its divisors is an integer number (194106628800).

Almost surely, 2^{4000860870909} is an apocalyptic number.

It is an amenable number.

4000860870909 is a deficient number, since it is larger than the sum of its proper divisors (2210551250691).

4000860870909 is a wasteful number, since it uses less digits than its factorization.

4000860870909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15405529.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 4000860870909 in words is "four trillion, eight hundred sixty million, eight hundred seventy thousand, nine hundred nine".