4206078491850 has 144 divisors (see below), whose sum is σ = 11713268945664. Its totient is φ = 1080934848000.

The previous prime is 4206078491821. The next prime is 4206078491887. The reversal of 4206078491850 is 581948706024.

It is a happy number.

4206078491850 is a `hidden beast` number, since 4 + 2 + 0 + 6 + 0 + 78 + 491 + 85 + 0 = 666.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 2736409 + ... + 3987491.

It is an arithmetic number, because the mean of its divisors is an integer number (81342145456).

Almost surely, 2^{4206078491850} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4206078491850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5856634472832).

4206078491850 is an abundant number, since it is smaller than the sum of its proper divisors (7507190453814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4206078491850 is a wasteful number, since it uses less digits than its factorization.

4206078491850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251373 (or 1251365 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 4206078491850 in words is "four trillion, two hundred six billion, seventy-eight million, four hundred ninety-one thousand, eight hundred fifty".