9930637501 has 2 divisors, whose sum is σ = 9930637502. Its totient is φ = 9930637500.

The previous prime is 9930637487. The next prime is 9930637513. The reversal of 9930637501 is 1057360399.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5955208900 + 3975428601 = 77170^2 + 63051^2 .

It is an emirp because it is prime and its reverse (1057360399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9930637501 - 2²⁹ = 9393766589 is a prime.

It is a super-2 number, since 2×9930637501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9930637901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4965318750 + 4965318751.

It is an arithmetic number, because the mean of its divisors is an integer number (4965318751).

Almost surely, 2^9930637501 is an apocalyptic number.

It is an amenable number.

9930637501 is a deficient number, since it is larger than the sum of its proper divisors (1).

9930637501 is an equidigital number, since it uses as much as digits as its factorization.

9930637501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 9930637501 is about 99652.5840156692. The cubic root of 9930637501 is about 2149.4418959529.

The spelling of 9930637501 in words is "nine billion, nine hundred thirty million, six hundred thirty-seven thousand, five hundred one".