9900227547 has 12 divisors (see below), whose sum is σ = 16343232880. Its totient is φ = 5657272848.

The previous prime is 9900227539. The next prime is 9900227563. The reversal of 9900227547 is 7457220099.

It is not a de Polignac number, because 9900227547 - 2³ = 9900227539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9900227567) 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, 78573172 + ... + 78573297.

Almost surely, 2^9900227547 is an apocalyptic number.

9900227547 is a deficient number, since it is larger than the sum of its proper divisors (6443005333).

9900227547 is a wasteful number, since it uses less digits than its factorization.

9900227547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157146482 (or 157146479 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 9900227547 is about 99499.8871707903. The cubic root of 9900227547 is about 2147.2456199217.

The spelling of 9900227547 in words is "nine billion, nine hundred million, two hundred twenty-seven thousand, five hundred forty-seven".