3810561820138 has 8 divisors (see below), whose sum is σ = 5715856343232. Its totient is φ = 1905276372396.

The previous prime is 3810561820103. The next prime is 3810561820189. The reversal of 3810561820138 is 8310281650183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×3810561820138³ (a number of 39 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098370 + ... + 2971117.

It is an arithmetic number, because the mean of its divisors is an integer number (714482042904).

Almost surely, 2^{3810561820138} is an apocalyptic number.

3810561820138 is a deficient number, since it is larger than the sum of its proper divisors (1905294523094).

3810561820138 is a wasteful number, since it uses less digits than its factorization.

3810561820138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537676.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 3810561820138 in words is "three trillion, eight hundred ten billion, five hundred sixty-one million, eight hundred twenty thousand, one hundred thirty-eight".