2608978305263 has 8 divisors (see below), whose sum is σ = 2944301536080. Its totient is φ = 2290012305280.

The previous prime is 2608978305259. The next prime is 2608978305317. The reversal of 2608978305263 is 3625038798062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2608978305263 - 2² = 2608978305259 is a prime.

It is a super-2 number, since 2×2608978305263² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2608978305203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4089307370 + ... + 4089308007.

It is an arithmetic number, because the mean of its divisors is an integer number (368037692010).

Almost surely, 2^{2608978305263} is an apocalyptic number.

2608978305263 is a deficient number, since it is larger than the sum of its proper divisors (335323230817).

2608978305263 is a wasteful number, since it uses less digits than its factorization.

2608978305263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8178615417.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 2608978305263 in words is "two trillion, six hundred eight billion, nine hundred seventy-eight million, three hundred five thousand, two hundred sixty-three".