1827213664 has 12 divisors (see below), whose sum is σ = 3597326964. Its totient is φ = 913606816.

The previous prime is 1827213649. The next prime is 1827213683. The reversal of 1827213664 is 4663127281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28550182 + ... + 28550245.

It is an arithmetic number, because the mean of its divisors is an integer number (299777247).

Almost surely, 2^1827213664 is an apocalyptic number.

It is an amenable number.

1827213664 is a deficient number, since it is larger than the sum of its proper divisors (1770113300).

1827213664 is an equidigital number, since it uses as much as digits as its factorization.

1827213664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57100437 (or 57100429 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 1827213664 is about 42745.9198520748. The cubic root of 1827213664 is about 1222.5400951772.

The spelling of 1827213664 in words is "one billion, eight hundred twenty-seven million, two hundred thirteen thousand, six hundred sixty-four".