9621137273 has 16 divisors (see below), whose sum is σ = 10680253056. Its totient is φ = 8593683840.

The previous prime is 9621137249. The next prime is 9621137287. The reversal of 9621137273 is 3727311269.

It is a cyclic number.

It is not a de Polignac number, because 9621137273 - 2¹⁰ = 9621136249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9621137273.

It is not an unprimeable number, because it can be changed into a prime (9621127273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188411 + ... + 233967.

It is an arithmetic number, because the mean of its divisors is an integer number (667515816).

Almost surely, 2^9621137273 is an apocalyptic number.

It is an amenable number.

9621137273 is a deficient number, since it is larger than the sum of its proper divisors (1059115783).

9621137273 is a wasteful number, since it uses less digits than its factorization.

9621137273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45904.

The product of its digits is 95256, while the sum is 41.

The square root of 9621137273 is about 98087.3960965424. The cubic root of 9621137273 is about 2126.8758355201.

The spelling of 9621137273 in words is "nine billion, six hundred twenty-one million, one hundred thirty-seven thousand, two hundred seventy-three".