2538328747 has 4 divisors (see below), whose sum is σ = 2553901480. Its totient is φ = 2522756016.

The previous prime is 2538328729. The next prime is 2538328753. The reversal of 2538328747 is 7478238352.

It is a happy number.

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 2538328747 - 2⁷ = 2538328619 is a prime.

It is a super-2 number, since 2×2538328747² = 12886225655693180018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2538328747.

It is not an unprimeable number, because it can be changed into a prime (2538328717) 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, 7786122 + ... + 7786447.

It is an arithmetic number, because the mean of its divisors is an integer number (638475370).

Almost surely, 2^2538328747 is an apocalyptic number.

2538328747 is a deficient number, since it is larger than the sum of its proper divisors (15572733).

2538328747 is a wasteful number, since it uses less digits than its factorization.

2538328747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15572732.

The product of its digits is 2257920, while the sum is 49.

The square root of 2538328747 is about 50381.8295320843. The cubic root of 2538328747 is about 1364.1096757311.

The spelling of 2538328747 in words is "two billion, five hundred thirty-eight million, three hundred twenty-eight thousand, seven hundred forty-seven".