9930495761 has 4 divisors (see below), whose sum is σ = 9964388532. Its totient is φ = 9896602992.

The previous prime is 9930495739. The next prime is 9930495791. The reversal of 9930495761 is 1675940399.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8212890625 + 1717605136 = 90625^2 + 41444^2 .

It is a cyclic number.

It is not a de Polignac number, because 9930495761 - 2¹⁸ = 9930233617 is a prime.

It is a super-2 number, since 2×9930495761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9930495791) by changing a digit.

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, 16945946 + ... + 16946531.

It is an arithmetic number, because the mean of its divisors is an integer number (2491097133).

Almost surely, 2^9930495761 is an apocalyptic number.

It is an amenable number.

9930495761 is a deficient number, since it is larger than the sum of its proper divisors (33892771).

9930495761 is a wasteful number, since it uses less digits than its factorization.

9930495761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33892770.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 9930495761 is about 99651.8728424107. The cubic root of 9930495761 is about 2149.4316695754.

The spelling of 9930495761 in words is "nine billion, nine hundred thirty million, four hundred ninety-five thousand, seven hundred sixty-one".