3502800081 has 144 divisors (see below), whose sum is σ = 6232145920. Its totient is φ = 1886068800.

The previous prime is 3502800079. The next prime is 3502800097. The reversal of 3502800081 is 1800082053.

It is a happy number.

3502800081 is a `hidden beast` number, since 3 + 502 + 80 + 0 + 0 + 81 = 666.

It is not a de Polignac number, because 3502800081 - 2¹ = 3502800079 is a prime.

It is a super-2 number, since 2×3502800081² = 24539216814907213122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3502800181) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 27581040 + ... + 27581166.

Almost surely, 2^3502800081 is an apocalyptic number.

3502800081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3502800081 is a deficient number, since it is larger than the sum of its proper divisors (2729345839).

3502800081 is a wasteful number, since it uses less digits than its factorization.

3502800081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 3502800081 is about 59184.4581034582. The cubic root of 3502800081 is about 1518.6992682541.

The spelling of 3502800081 in words is "three billion, five hundred two million, eight hundred thousand, eighty-one".