6238278457 has 4 divisors (see below), whose sum is σ = 6249683536. Its totient is φ = 6226873380.

The previous prime is 6238278419. The next prime is 6238278499. The reversal of 6238278457 is 7548728326.

It is a happy number.

6238278457 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6238278457 - 2¹¹ = 6238276409 is a prime.

It is a super-2 number, since 2×6238278457² = 77832236214140601698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6238272457) 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, 5701719 + ... + 5702812.

It is an arithmetic number, because the mean of its divisors is an integer number (1562420884).

Almost surely, 2^6238278457 is an apocalyptic number.

It is an amenable number.

6238278457 is a deficient number, since it is larger than the sum of its proper divisors (11405079).

6238278457 is a wasteful number, since it uses less digits than its factorization.

6238278457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405078.

The product of its digits is 4515840, while the sum is 52.

The square root of 6238278457 is about 78982.7731660518. The cubic root of 6238278457 is about 1840.8634944588.

The spelling of 6238278457 in words is "six billion, two hundred thirty-eight million, two hundred seventy-eight thousand, four hundred fifty-seven".