1836454557382 has 4 divisors (see below), whose sum is σ = 2754681836076. Its totient is φ = 918227278690.

The previous prime is 1836454557359. The next prime is 1836454557389. The reversal of 1836454557382 is 2837554546381.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1836454557382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1836454557389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459113639344 + ... + 459113639347.

It is an arithmetic number, because the mean of its divisors is an integer number (688670459019).

Almost surely, 2^{1836454557382} is an apocalyptic number.

1836454557382 is a deficient number, since it is larger than the sum of its proper divisors (918227278694).

1836454557382 is an equidigital number, since it uses as much as digits as its factorization.

1836454557382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918227278693.

The product of its digits is 96768000, while the sum is 61.

The spelling of 1836454557382 in words is "one trillion, eight hundred thirty-six billion, four hundred fifty-four million, five hundred fifty-seven thousand, three hundred eighty-two".