2538013661 has 8 divisors (see below), whose sum is σ = 2565726240. Its totient is φ = 2510381808.

The previous prime is 2538013651. The next prime is 2538013697. The reversal of 2538013661 is 1663108352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2538013661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538013651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44150 + ... + 83816.

It is an arithmetic number, because the mean of its divisors is an integer number (320715780).

Almost surely, 2^2538013661 is an apocalyptic number.

It is an amenable number.

2538013661 is a deficient number, since it is larger than the sum of its proper divisors (27712579).

2538013661 is a wasteful number, since it uses less digits than its factorization.

2538013661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40363.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2538013661 is about 50378.7024545095. The cubic root of 2538013661 is about 1364.0532305015.

The spelling of 2538013661 in words is "two billion, five hundred thirty-eight million, thirteen thousand, six hundred sixty-one".