4011384435861 has 64 divisors (see below), whose sum is σ = 6062244249600. Its totient is φ = 2337387302400.

The previous prime is 4011384435853. The next prime is 4011384435887. The reversal of 4011384435861 is 1685344831104.

It is not a de Polignac number, because 4011384435861 - 2³ = 4011384435853 is a prime.

It is a super-2 number, since 2×4011384435861² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4011384435861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011384430861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 394466785 + ... + 394476953.

It is an arithmetic number, because the mean of its divisors is an integer number (94722566400).

Almost surely, 2^{4011384435861} is an apocalyptic number.

It is an amenable number.

4011384435861 is a deficient number, since it is larger than the sum of its proper divisors (2050859813739).

4011384435861 is a wasteful number, since it uses less digits than its factorization.

4011384435861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 4011384435861 in words is "four trillion, eleven billion, three hundred eighty-four million, four hundred thirty-five thousand, eight hundred sixty-one".