2538768447 has 16 divisors (see below), whose sum is σ = 3764800000. Its totient is φ = 1690864632.

The previous prime is 2538768443. The next prime is 2538768473. The reversal of 2538768447 is 7448678352.

2538768447 is a `hidden beast` number, since 2 + 538 + 7 + 68 + 4 + 47 = 666.

2538768447 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2538768447 - 2² = 2538768443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2538768393 and 2538768402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2538768443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17197 + ... + 73302.

It is an arithmetic number, because the mean of its divisors is an integer number (235300000).

Almost surely, 2^2538768447 is an apocalyptic number.

2538768447 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2538768447 is a deficient number, since it is larger than the sum of its proper divisors (1226031553).

2538768447 is a wasteful number, since it uses less digits than its factorization.

2538768447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91547 (or 91541 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The square root of 2538768447 is about 50386.1930195168. The cubic root of 2538768447 is about 1364.1884367919.

The spelling of 2538768447 in words is "two billion, five hundred thirty-eight million, seven hundred sixty-eight thousand, four hundred forty-seven".