2605979798 has 8 divisors (see below), whose sum is σ = 3929224008. Its totient is φ = 1296238464.

The previous prime is 2605979773. The next prime is 2605979837. The reversal of 2605979798 is 8979795062.

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

It is a super-2 number, since 2×2605979798² = 13582261415168241608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2605979798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3375236 + ... + 3376007.

It is an arithmetic number, because the mean of its divisors is an integer number (491153001).

Almost surely, 2^2605979798 is an apocalyptic number.

2605979798 is a deficient number, since it is larger than the sum of its proper divisors (1323244210).

2605979798 is a wasteful number, since it uses less digits than its factorization.

2605979798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751438.

The product of its (nonzero) digits is 17146080, while the sum is 62.

The square root of 2605979798 is about 51048.7982032878. The cubic root of 2605979798 is about 1376.1222437789.

The spelling of 2605979798 in words is "two billion, six hundred five million, nine hundred seventy-nine thousand, seven hundred ninety-eight".