4190843161908 has 378 divisors, whose sum is σ = 12567030954534. Its totient is φ = 1221570440064.

The previous prime is 4190843161891. The next prime is 4190843161909. The reversal of 4190843161908 is 8091613480914.

4190843161908 is a `hidden beast` number, since 4 + 19 + 0 + 8 + 4 + 3 + 1 + 619 + 0 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 541169152164 + 3649674009744 = 735642^2 + 1910412^2 .

It is a super-2 number, since 2×4190843161908² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4190843161909) by changing a digit.

It is a polite number, since it can be written in 125 ways as a sum of consecutive naturals, for example, 177890466 + ... + 177914022.

Almost surely, 2^{4190843161908} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4190843161908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6283515477267).

4190843161908 is an abundant number, since it is smaller than the sum of its proper divisors (8376187792626).

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

4190843161908 is a wasteful number, since it uses less digits than its factorization.

4190843161908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23643 (or 23594 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 4190843161908 in words is "four trillion, one hundred ninety billion, eight hundred forty-three million, one hundred sixty-one thousand, nine hundred eight".