9613736991 has 40 divisors (see below), whose sum is σ = 14462355600. Its totient is φ = 6364224000.

The previous prime is 9613736987. The next prime is 9613737011. The reversal of 9613736991 is 1996373169.

It is not a de Polignac number, because 9613736991 - 2² = 9613736987 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

Its product of digits (1653372) is a multiple of the sum of its prime factors (1701).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9613736941) 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 39 ways as a sum of consecutive naturals, for example, 10348015 + ... + 10348943.

It is an arithmetic number, because the mean of its divisors is an integer number (361558890).

Almost surely, 2^9613736991 is an apocalyptic number.

9613736991 is a deficient number, since it is larger than the sum of its proper divisors (4848618609).

9613736991 is a wasteful number, since it uses less digits than its factorization.

9613736991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1692 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 54.

The square root of 9613736991 is about 98049.6659402774. The cubic root of 9613736991 is about 2126.3303865542.

The spelling of 9613736991 in words is "nine billion, six hundred thirteen million, seven hundred thirty-six thousand, nine hundred ninety-one".