2538423749 has 8 divisors (see below), whose sum is σ = 2581819800. Its totient is φ = 2495379456.

The previous prime is 2538423743. The next prime is 2538423757. The reversal of 2538423749 is 9473248352.

2538423749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10144225 + 2528279524 = 3185^2 + 50282^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2538423749 - 2⁴ = 2538423733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538423743) 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, 73364 + ... + 102269.

It is an arithmetic number, because the mean of its divisors is an integer number (322727475).

Almost surely, 2^2538423749 is an apocalyptic number.

It is an amenable number.

2538423749 is a deficient number, since it is larger than the sum of its proper divisors (43396051).

2538423749 is a wasteful number, since it uses less digits than its factorization.

2538423749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175879.

The product of its digits is 1451520, while the sum is 47.

The square root of 2538423749 is about 50382.7723433318. The cubic root of 2538423749 is about 1364.1266936910.

The spelling of 2538423749 in words is "two billion, five hundred thirty-eight million, four hundred twenty-three thousand, seven hundred forty-nine".