8771923541661 has 12 divisors (see below), whose sum is σ = 13605432432192. Its totient is φ = 5012527738008.

The previous prime is 8771923541659. The next prime is 8771923541753. The reversal of 8771923541661 is 1661453291778.

It is not a de Polignac number, because 8771923541661 - 2¹ = 8771923541659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8771923541595 and 8771923541604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8771923521661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29836474485 + ... + 29836474778.

It is an arithmetic number, because the mean of its divisors is an integer number (1133786036016).

Almost surely, 2^{8771923541661} is an apocalyptic number.

It is an amenable number.

8771923541661 is a deficient number, since it is larger than the sum of its proper divisors (4833508890531).

8771923541661 is a wasteful number, since it uses less digits than its factorization.

8771923541661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59672949280 (or 59672949273 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The spelling of 8771923541661 in words is "eight trillion, seven hundred seventy-one billion, nine hundred twenty-three million, five hundred forty-one thousand, six hundred sixty-one".