9520640629 has 2 divisors, whose sum is σ = 9520640630. Its totient is φ = 9520640628.

The previous prime is 9520640617. The next prime is 9520640659. The reversal of 9520640629 is 9260460259.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7761257604 + 1759383025 = 88098^2 + 41945^2 .

It is a cyclic number.

It is not a de Polignac number, because 9520640629 - 2²³ = 9512252021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9520640659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4760320314 + 4760320315.

It is an arithmetic number, because the mean of its divisors is an integer number (4760320315).

Almost surely, 2^9520640629 is an apocalyptic number.

It is an amenable number.

9520640629 is a deficient number, since it is larger than the sum of its proper divisors (1).

9520640629 is an equidigital number, since it uses as much as digits as its factorization.

9520640629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 9520640629 is about 97573.7701895340. The cubic root of 9520640629 is about 2119.4445433508. Note that the first 3 decimals are identical.

The spelling of 9520640629 in words is "nine billion, five hundred twenty million, six hundred forty thousand, six hundred twenty-nine".