3645816810 has 16 divisors (see below), whose sum is σ = 8749960416. Its totient is φ = 972217808.

The previous prime is 3645816803. The next prime is 3645816817. The reversal of 3645816810 is 186185463.

It is an interprime number because it is at equal distance from previous prime (3645816803) and next prime (3645816817).

It is a super-2 number, since 2×3645816810² = 26583960424157152200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3645816817) 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, 60763584 + ... + 60763643.

It is an arithmetic number, because the mean of its divisors is an integer number (546872526).

Almost surely, 2^3645816810 is an apocalyptic number.

3645816810 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3645816810 is an abundant number, since it is smaller than the sum of its proper divisors (5104143606).

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

3645816810 is a wasteful number, since it uses less digits than its factorization.

3645816810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121527237.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 3645816810 is about 60380.5996161019. The cubic root of 3645816810 is about 1539.0933002506.

The spelling of 3645816810 in words is "three billion, six hundred forty-five million, eight hundred sixteen thousand, eight hundred ten".