9309315721461 has 32 divisors (see below), whose sum is σ = 14288817177600. Its totient is φ = 5280917627520.

The previous prime is 9309315721439. The next prime is 9309315721469. The reversal of 9309315721461 is 1641275139039.

It is a happy number.

It is not a de Polignac number, because 9309315721461 - 2¹¹ = 9309315719413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9309315721469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38530050 + ... + 38770908.

It is an arithmetic number, because the mean of its divisors is an integer number (446525536800).

Almost surely, 2^{9309315721461} is an apocalyptic number.

It is an amenable number.

9309315721461 is a deficient number, since it is larger than the sum of its proper divisors (4979501456139).

9309315721461 is a wasteful number, since it uses less digits than its factorization.

9309315721461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254249.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 9309315721461 in words is "nine trillion, three hundred nine billion, three hundred fifteen million, seven hundred twenty-one thousand, four hundred sixty-one".