38902010210021 has 16 divisors (see below), whose sum is σ = 44901183856128. Its totient is φ = 33013295280000.

The previous prime is 38902010210009. The next prime is 38902010210071. The reversal of 38902010210021 is 12001201020983.

It is not a de Polignac number, because 38902010210021 - 2³⁰ = 38900936468197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38902010210071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19850756 + ... + 21722258.

It is an arithmetic number, because the mean of its divisors is an integer number (2806323991008).

Almost surely, 2^{38902010210021} is an apocalyptic number.

It is an amenable number.

38902010210021 is a deficient number, since it is larger than the sum of its proper divisors (5999173646107).

38902010210021 is a wasteful number, since it uses less digits than its factorization.

38902010210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901012.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 38902010210021 in words is "thirty-eight trillion, nine hundred two billion, ten million, two hundred ten thousand, twenty-one".