1827271836 has 72 divisors (see below), whose sum is σ = 5055863904. Its totient is φ = 553011840.

The previous prime is 1827271829. The next prime is 1827271847. The reversal of 1827271836 is 6381727281.

It is a super-3 number, since 3×1827271836³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1827271791 and 1827271800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3456 + ... + 60551.

It is an arithmetic number, because the mean of its divisors is an integer number (70220332).

Almost surely, 2^1827271836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1827271836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2527931952).

1827271836 is an abundant number, since it is smaller than the sum of its proper divisors (3228592068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1827271836 is a wasteful number, since it uses less digits than its factorization.

1827271836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64091 (or 64086 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 1827271836 is about 42746.6002858707. The cubic root of 1827271836 is about 1222.5530688192.

The spelling of 1827271836 in words is "one billion, eight hundred twenty-seven million, two hundred seventy-one thousand, eight hundred thirty-six".