9601804781 has 2 divisors, whose sum is σ = 9601804782. Its totient is φ = 9601804780.

The previous prime is 9601804763. The next prime is 9601804847. The reversal of 9601804781 is 1874081069.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9222529156 + 379275625 = 96034^2 + 19475^2 .

It is a cyclic number.

It is not a de Polignac number, because 9601804781 - 2²⁶ = 9534695917 is a prime.

It is a super-2 number, since 2×9601804781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9601804721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4800902390 + 4800902391.

It is an arithmetic number, because the mean of its divisors is an integer number (4800902391).

Almost surely, 2^9601804781 is an apocalyptic number.

It is an amenable number.

9601804781 is a deficient number, since it is larger than the sum of its proper divisors (1).

9601804781 is an equidigital number, since it uses as much as digits as its factorization.

9601804781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 9601804781 is about 97988.7992629770. The cubic root of 9601804781 is about 2125.4503151585.

The spelling of 9601804781 in words is "nine billion, six hundred one million, eight hundred four thousand, seven hundred eighty-one".