1838291120021 has 8 divisors (see below), whose sum is σ = 1886056174464. Its totient is φ = 1790665526880.

The previous prime is 1838291120011. The next prime is 1838291120027. The reversal of 1838291120021 is 1200211928381.

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 1838291120021 - 2¹⁰ = 1838291118997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838291120027) 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, 34838621 + ... + 34891346.

It is an arithmetic number, because the mean of its divisors is an integer number (235757021808).

Almost surely, 2^{1838291120021} is an apocalyptic number.

It is an amenable number.

1838291120021 is a deficient number, since it is larger than the sum of its proper divisors (47765054443).

1838291120021 is an equidigital number, since it uses as much as digits as its factorization.

1838291120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69730651.

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 1838291120021 in words is "one trillion, eight hundred thirty-eight billion, two hundred ninety-one million, one hundred twenty thousand, twenty-one".