3621870507885 has 64 divisors (see below), whose sum is σ = 6960027604992. Its totient is φ = 1573498918656.

The previous prime is 3621870507877. The next prime is 3621870507947. The reversal of 3621870507885 is 5887050781263.

3621870507885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3621870507885 - 2³ = 3621870507877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10673299 + ... + 11007408.

It is an arithmetic number, because the mean of its divisors is an integer number (108750431328).

Almost surely, 2^{3621870507885} is an apocalyptic number.

3621870507885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3621870507885 is a deficient number, since it is larger than the sum of its proper divisors (3338157097107).

3621870507885 is a wasteful number, since it uses less digits than its factorization.

3621870507885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21680802.

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 3621870507885 in words is "three trillion, six hundred twenty-one billion, eight hundred seventy million, five hundred seven thousand, eight hundred eighty-five".