9974966519 has 4 divisors (see below), whose sum is σ = 11399961744. Its totient is φ = 8549971296.

The previous prime is 9974966513. The next prime is 9974966537. The reversal of 9974966519 is 9156694799.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9974966519 - 2¹⁶ = 9974900983 is a prime.

It is a super-2 number, since 2×9974966519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9974966513) 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, 712497602 + ... + 712497615.

It is an arithmetic number, because the mean of its divisors is an integer number (2849990436).

Almost surely, 2^9974966519 is an apocalyptic number.

9974966519 is a deficient number, since it is larger than the sum of its proper divisors (1424995225).

9974966519 is a wasteful number, since it uses less digits than its factorization.

9974966519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424995224.

The product of its digits is 33067440, while the sum is 65.

The square root of 9974966519 is about 99874.7541624008. The cubic root of 9974966519 is about 2152.6354211342.

The spelling of 9974966519 in words is "nine billion, nine hundred seventy-four million, nine hundred sixty-six thousand, five hundred nineteen".