1836381011 has 8 divisors (see below), whose sum is σ = 1869934080. Its totient is φ = 1803126528.

The previous prime is 1836380993. The next prime is 1836381023. The reversal of 1836381011 is 1101836381.

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

It is a cyclic number.

It is not a de Polignac number, because 1836381011 - 2²⁶ = 1769272147 is a prime.

It is a super-2 number, since 2×1836381011² = 6744590435122764242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1836381031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62216 + ... + 86853.

It is an arithmetic number, because the mean of its divisors is an integer number (233741760).

Almost surely, 2^1836381011 is an apocalyptic number.

1836381011 is a deficient number, since it is larger than the sum of its proper divisors (33553069).

1836381011 is a wasteful number, since it uses less digits than its factorization.

1836381011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149293.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1836381011 is about 42853.0163582448. The cubic root of 1836381011 is about 1224.5812281748.

The spelling of 1836381011 in words is "one billion, eight hundred thirty-six million, three hundred eighty-one thousand, eleven".