1810008856 has 32 divisors (see below), whose sum is σ = 3585366000. Its totient is φ = 854257536.

The previous prime is 1810008839. The next prime is 1810008857. The reversal of 1810008856 is 6588000181.

It is a super-2 number, since 2×1810008856² = 6552264117596857472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810008857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20610 + ... + 63598.

Almost surely, 2^1810008856 is an apocalyptic number.

It is an amenable number.

1810008856 is a deficient number, since it is larger than the sum of its proper divisors (1775357144).

1810008856 is a wasteful number, since it uses less digits than its factorization.

1810008856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43291 (or 43287 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 1810008856 is about 42544.1988524875. The cubic root of 1810008856 is about 1218.6908953463.

The spelling of 1810008856 in words is "one billion, eight hundred ten million, eight thousand, eight hundred fifty-six".