8021869101 has 96 divisors (see below), whose sum is σ = 13496491008. Its totient is φ = 4736517120.

The previous prime is 8021869099. The next prime is 8021869151. The reversal of 8021869101 is 1019681208.

It is not a de Polignac number, because 8021869101 - 2¹ = 8021869099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8021869151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4737411 + ... + 4739103.

It is an arithmetic number, because the mean of its divisors is an integer number (140588448).

Almost surely, 2^8021869101 is an apocalyptic number.

8021869101 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8021869101 is a deficient number, since it is larger than the sum of its proper divisors (5474621907).

8021869101 is a wasteful number, since it uses less digits than its factorization.

8021869101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 8021869101 is about 89564.8876569384. The cubic root of 8021869101 is about 2001.8207669841.

The spelling of 8021869101 in words is "eight billion, twenty-one million, eight hundred sixty-nine thousand, one hundred one".