9957922529 has 2 divisors, whose sum is σ = 9957922530. Its totient is φ = 9957922528.

The previous prime is 9957922511. The next prime is 9957922577. The reversal of 9957922529 is 9252297599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6340140625 + 3617781904 = 79625^2 + 60148^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9957922529 is a prime.

It is not a weakly prime, because it can be changed into another prime (9957922129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4978961264 + 4978961265.

It is an arithmetic number, because the mean of its divisors is an integer number (4978961265).

Almost surely, 2^9957922529 is an apocalyptic number.

It is an amenable number.

9957922529 is a deficient number, since it is larger than the sum of its proper divisors (1).

9957922529 is an equidigital number, since it uses as much as digits as its factorization.

9957922529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 59.

The square root of 9957922529 is about 99789.3908639591. The cubic root of 9957922529 is about 2151.4086697058.

The spelling of 9957922529 in words is "nine billion, nine hundred fifty-seven million, nine hundred twenty-two thousand, five hundred twenty-nine".