6266401255838 has 4 divisors (see below), whose sum is σ = 9399601883760. Its totient is φ = 3133200627918.

The previous prime is 6266401255831. The next prime is 6266401255841. The reversal of 6266401255838 is 8385521046626.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6266401255831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1566600313958 + ... + 1566600313961.

It is an arithmetic number, because the mean of its divisors is an integer number (2349900470940).

Almost surely, 2^{6266401255838} is an apocalyptic number.

6266401255838 is a deficient number, since it is larger than the sum of its proper divisors (3133200627922).

6266401255838 is a wasteful number, since it uses less digits than its factorization.

6266401255838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133200627921.

The product of its (nonzero) digits is 16588800, while the sum is 56.

It can be divided in two parts, 6266 and 401255838, that added together give a palindrome (401262104).

The spelling of 6266401255838 in words is "six trillion, two hundred sixty-six billion, four hundred one million, two hundred fifty-five thousand, eight hundred thirty-eight".