9855912474 has 12 divisors (see below), whose sum is σ = 21354477066. Its totient is φ = 3285304152.

The previous prime is 9855912461. The next prime is 9855912497. The reversal of 9855912474 is 4742195589.

It is a happy number.

9855912474 is a `hidden beast` number, since 9 + 8 + 5 + 591 + 2 + 47 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9827748225 + 28164249 = 99135^2 + 5307^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9855912474.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273775329 + ... + 273775364.

Almost surely, 2^9855912474 is an apocalyptic number.

9855912474 is an abundant number, since it is smaller than the sum of its proper divisors (11498564592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9855912474 is a wasteful number, since it uses less digits than its factorization.

9855912474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547550701 (or 547550698 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 9855912474 is about 99276.9483515685. The cubic root of 9855912474 is about 2144.0370176567.

The spelling of 9855912474 in words is "nine billion, eight hundred fifty-five million, nine hundred twelve thousand, four hundred seventy-four".