9545921906 has 8 divisors (see below), whose sum is σ = 15161170140. Its totient is φ = 4492198528.

The previous prime is 9545921899. The next prime is 9545921911. The reversal of 9545921906 is 6091295459.

It can be written as a sum of positive squares in 2 ways, for example, as 9476049025 + 69872881 = 97345^2 + 8359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×9545921906² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140381171 + ... + 140381238.

Almost surely, 2^9545921906 is an apocalyptic number.

9545921906 is a deficient number, since it is larger than the sum of its proper divisors (5615248234).

9545921906 is a wasteful number, since it uses less digits than its factorization.

9545921906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280762428.

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 9545921906 is about 97703.2338564083. The cubic root of 9545921906 is about 2121.3188887425.

The spelling of 9545921906 in words is "nine billion, five hundred forty-five million, nine hundred twenty-one thousand, nine hundred six".