4098171636 has 216 divisors, whose sum is σ = 11929042944. Its totient is φ = 1178997120.

The previous prime is 4098171607. The next prime is 4098171641. The reversal of 4098171636 is 6361718904.

It is a happy number.

4098171636 is a `hidden beast` number, since 4 + 0 + 9 + 8 + 1 + 7 + 1 + 636 = 666.

It is a super-2 number, since 2×4098171636² = 33590021516229832992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4098171591 and 4098171600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21456301 + ... + 21456491.

Almost surely, 2^4098171636 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 4098171636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5964521472).

4098171636 is an abundant number, since it is smaller than the sum of its proper divisors (7830871308).

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

4098171636 is a wasteful number, since it uses less digits than its factorization.

4098171636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 4098171636 is about 64016.9636580805. The cubic root of 4098171636 is about 1600.2827151463.

The spelling of 4098171636 in words is "four billion, ninety-eight million, one hundred seventy-one thousand, six hundred thirty-six".