9778960493 has 2 divisors, whose sum is σ = 9778960494. Its totient is φ = 9778960492.

The previous prime is 9778960481. The next prime is 9778960537. The reversal of 9778960493 is 3940698779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8748422089 + 1030538404 = 93533^2 + 32102^2 .

It is a cyclic number.

It is not a de Polignac number, because 9778960493 - 2⁸ = 9778960237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9778960403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4889480246 + 4889480247.

It is an arithmetic number, because the mean of its divisors is an integer number (4889480247).

Almost surely, 2^9778960493 is an apocalyptic number.

It is an amenable number.

9778960493 is a deficient number, since it is larger than the sum of its proper divisors (1).

9778960493 is an equidigital number, since it uses as much as digits as its factorization.

9778960493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The square root of 9778960493 is about 98888.6267120744. The cubic root of 9778960493 is about 2138.4424346956.

The spelling of 9778960493 in words is "nine billion, seven hundred seventy-eight million, nine hundred sixty thousand, four hundred ninety-three".