1840136719806 has 144 divisors (see below), whose sum is σ = 5169979336704. Its totient is φ = 462539484000.

The previous prime is 1840136719721. The next prime is 1840136719849. The reversal of 1840136719806 is 6089176310481.

1840136719806 is a `hidden beast` number, since 18 + 401 + 36 + 7 + 198 + 0 + 6 = 666.

It is a super-2 number, since 2×1840136719806² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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, 1474090 + ... + 2419341.

Almost surely, 2^{1840136719806} is an apocalyptic number.

1840136719806 is an abundant number, since it is smaller than the sum of its proper divisors (3329842616898).

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

1840136719806 is a wasteful number, since it uses less digits than its factorization.

1840136719806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893499 (or 3893485 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 1840136719806 in words is "one trillion, eight hundred forty billion, one hundred thirty-six million, seven hundred nineteen thousand, eight hundred six".