1812786954 has 64 divisors (see below), whose sum is σ = 4118117760. Its totient is φ = 527109120.

The previous prime is 1812786923. The next prime is 1812786971. The reversal of 1812786954 is 4596872181.

It is a junction number, because it is equal to n+sod(n) for n = 1812786897 and 1812786906.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173182 + ... + 183350.

It is an arithmetic number, because the mean of its divisors is an integer number (64345590).

Almost surely, 2^1812786954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1812786954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2059058880).

1812786954 is an abundant number, since it is smaller than the sum of its proper divisors (2305330806).

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

1812786954 is a wasteful number, since it uses less digits than its factorization.

1812786954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10295.

The product of its digits is 967680, while the sum is 51.

The square root of 1812786954 is about 42576.8358852557. The cubic root of 1812786954 is about 1219.3140805217.

The spelling of 1812786954 in words is "one billion, eight hundred twelve million, seven hundred eighty-six thousand, nine hundred fifty-four".