2663978359 has 4 divisors (see below), whose sum is σ = 3044546704. Its totient is φ = 2283410016.

The previous prime is 2663978351. The next prime is 2663978389. The reversal of 2663978359 is 9538793662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2663978359 - 2³ = 2663978351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663978351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190284162 + ... + 190284175.

It is an arithmetic number, because the mean of its divisors is an integer number (761136676).

Almost surely, 2^2663978359 is an apocalyptic number.

2663978359 is a deficient number, since it is larger than the sum of its proper divisors (380568345).

2663978359 is an equidigital number, since it uses as much as digits as its factorization.

2663978359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380568344.

The product of its digits is 14696640, while the sum is 58.

The square root of 2663978359 is about 51613.7419589008. The cubic root of 2663978359 is about 1386.2563999148.

The spelling of 2663978359 in words is "two billion, six hundred sixty-three million, nine hundred seventy-eight thousand, three hundred fifty-nine".