9974966537 has 2 divisors, whose sum is σ = 9974966538. Its totient is φ = 9974966536.

The previous prime is 9974966513. The next prime is 9974966591. The reversal of 9974966537 is 7356694799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8461056256 + 1513910281 = 91984^2 + 38909^2 .

It is a cyclic number.

It is not a de Polignac number, because 9974966537 - 2²⁴ = 9958189321 is a prime.

It is not a weakly prime, because it can be changed into another prime (9974966437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4987483268 + 4987483269.

It is an arithmetic number, because the mean of its divisors is an integer number (4987483269).

Almost surely, 2^9974966537 is an apocalyptic number.

It is an amenable number.

9974966537 is a deficient number, since it is larger than the sum of its proper divisors (1).

9974966537 is an equidigital number, since it uses as much as digits as its factorization.

9974966537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77157360, while the sum is 65.

The square root of 9974966537 is about 99874.7542525137. The cubic root of 9974966537 is about 2152.6354224290.

The spelling of 9974966537 in words is "nine billion, nine hundred seventy-four million, nine hundred sixty-six thousand, five hundred thirty-seven".