9875854449477 has 12 divisors (see below), whose sum is σ = 14650666961580. Its totient is φ = 6405959642688.

The previous prime is 9875854449463. The next prime is 9875854449481. The reversal of 9875854449477 is 7749444585789.

9875854449477 is a `hidden beast` number, since 9 + 8 + 7 + 5 + 8 + 54 + 4 + 494 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8696282510916 + 1179571938561 = 2948946^2 + 1086081^2 .

It is not a de Polignac number, because 9875854449477 - 2²³ = 9875846060869 is a prime.

It is a super-2 number, since 2×9875854449477² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9875854449396 and 9875854449405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875854449427) 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, 14828609952 + ... + 14828610617.

It is an arithmetic number, because the mean of its divisors is an integer number (1220888913465).

Almost surely, 2^{9875854449477} is an apocalyptic number.

It is an amenable number.

9875854449477 is a deficient number, since it is larger than the sum of its proper divisors (4774812512103).

9875854449477 is a wasteful number, since it uses less digits than its factorization.

9875854449477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29657220612 (or 29657220609 counting only the distinct ones).

The product of its digits is 11379916800, while the sum is 81.

The spelling of 9875854449477 in words is "nine trillion, eight hundred seventy-five billion, eight hundred fifty-four million, four hundred forty-nine thousand, four hundred seventy-seven".