1812472827 has 16 divisors (see below), whose sum is σ = 2727233280. Its totient is φ = 1060589600.

The previous prime is 1812472801. The next prime is 1812472897. The reversal of 1812472827 is 7282742181.

It is a cyclic number.

It is not a de Polignac number, because 1812472827 - 2⁷ = 1812472699 is a prime.

It is a super-2 number, since 2×1812472827² = 6570115497226743858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1812472897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945999 + ... + 947912.

It is an arithmetic number, because the mean of its divisors is an integer number (170452080).

Almost surely, 2^1812472827 is an apocalyptic number.

1812472827 is a deficient number, since it is larger than the sum of its proper divisors (914760453).

1812472827 is a wasteful number, since it uses less digits than its factorization.

1812472827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893954.

The product of its digits is 100352, while the sum is 42.

The square root of 1812472827 is about 42573.1467829194. The cubic root of 1812472827 is about 1219.2436472405.

It can be divided in two parts, 18124 and 72827, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 1812472827 in words is "one billion, eight hundred twelve million, four hundred seventy-two thousand, eight hundred twenty-seven".