9629725789 has 2 divisors, whose sum is σ = 9629725790. Its totient is φ = 9629725788.

The previous prime is 9629725751. The next prime is 9629725793. The reversal of 9629725789 is 9875279269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8265900889 + 1363824900 = 90917^2 + 36930^2 .

It is a cyclic number.

It is not a de Polignac number, because 9629725789 - 2²³ = 9621337181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9629725789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9629725489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4814862894 + 4814862895.

It is an arithmetic number, because the mean of its divisors is an integer number (4814862895).

Almost surely, 2^9629725789 is an apocalyptic number.

It is an amenable number.

9629725789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9629725789 is an equidigital number, since it uses as much as digits as its factorization.

9629725789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 64.

The square root of 9629725789 is about 98131.1662470186. The cubic root of 9629725789 is about 2127.5085145174.

The spelling of 9629725789 in words is "nine billion, six hundred twenty-nine million, seven hundred twenty-five thousand, seven hundred eighty-nine".