2620993898 has 16 divisors (see below), whose sum is σ = 3988191816. Its totient is φ = 1291622400.

The previous prime is 2620993891. The next prime is 2620993909. The reversal of 2620993898 is 8983990262.

It can be written as a sum of positive squares in 4 ways, for example, as 2416017409 + 204976489 = 49153^2 + 14317^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2620993891) 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, 228140 + ... + 239352.

Almost surely, 2^2620993898 is an apocalyptic number.

2620993898 is a deficient number, since it is larger than the sum of its proper divisors (1367197918).

2620993898 is a wasteful number, since it uses less digits than its factorization.

2620993898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12889.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 2620993898 is about 51195.6433498008. The cubic root of 2620993898 is about 1378.7599828584.

The spelling of 2620993898 in words is "two billion, six hundred twenty million, nine hundred ninety-three thousand, eight hundred ninety-eight".