2653478693 has 2 divisors, whose sum is σ = 2653478694. Its totient is φ = 2653478692.

The previous prime is 2653478621. The next prime is 2653478699. The reversal of 2653478693 is 3968743562.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2408650084 + 244828609 = 49078^2 + 15647^2 .

It is a cyclic number.

It is not a de Polignac number, because 2653478693 - 2²⁶ = 2586369829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2653478699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1326739346 + 1326739347.

It is an arithmetic number, because the mean of its divisors is an integer number (1326739347).

Almost surely, 2^2653478693 is an apocalyptic number.

It is an amenable number.

2653478693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2653478693 is an equidigital number, since it uses as much as digits as its factorization.

2653478693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 53.

The square root of 2653478693 is about 51511.9276769954. The cubic root of 2653478693 is about 1384.4327622803.

The spelling of 2653478693 in words is "two billion, six hundred fifty-three million, four hundred seventy-eight thousand, six hundred ninety-three".