2638803005 has 4 divisors (see below), whose sum is σ = 3166563612. Its totient is φ = 2111042400.

The previous prime is 2638802993. The next prime is 2638803017. The reversal of 2638803005 is 5003088362.

2638803005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2638802993) and next prime (2638803017).

It can be written as a sum of positive squares in 2 ways, for example, as 801909124 + 1836893881 = 28318^2 + 42859^2 .

It is not a de Polignac number, because 2638803005 - 2¹⁴ = 2638786621 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 263880296 + ... + 263880305.

It is an arithmetic number, because the mean of its divisors is an integer number (791640903).

Almost surely, 2^2638803005 is an apocalyptic number.

It is an amenable number.

2638803005 is a deficient number, since it is larger than the sum of its proper divisors (527760607).

2638803005 is an equidigital number, since it uses as much as digits as its factorization.

2638803005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527760606.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2638803005 is about 51369.2807522161. The cubic root of 2638803005 is about 1381.8757320496.

The spelling of 2638803005 in words is "two billion, six hundred thirty-eight million, eight hundred three thousand, five".