3621867123 has 16 divisors (see below), whose sum is σ = 5596770816. Its totient is φ = 2040487680.

The previous prime is 3621867121. The next prime is 3621867133. The reversal of 3621867123 is 3217681263.

It is not a de Polignac number, because 3621867123 - 2¹ = 3621867121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3621867121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213086 + ... + 1216067.

It is an arithmetic number, because the mean of its divisors is an integer number (349798176).

Almost surely, 2^3621867123 is an apocalyptic number.

3621867123 is a deficient number, since it is larger than the sum of its proper divisors (1974903693).

3621867123 is a wasteful number, since it uses less digits than its factorization.

3621867123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429234.

The product of its digits is 72576, while the sum is 39.

The square root of 3621867123 is about 60181.9501428792. The cubic root of 3621867123 is about 1535.7157477908.

The spelling of 3621867123 in words is "three billion, six hundred twenty-one million, eight hundred sixty-seven thousand, one hundred twenty-three".