6381626261836 has 24 divisors (see below), whose sum is σ = 13514032084896. Its totient is φ = 2574101349120.

The previous prime is 6381626261753. The next prime is 6381626261851.

6381626261836 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6703388455 + ... + 6703389406.

It is an arithmetic number, because the mean of its divisors is an integer number (563084670204).

Almost surely, 2^{6381626261836} is an apocalyptic number.

It is an amenable number.

6381626261836 is an abundant number, since it is smaller than the sum of its proper divisors (7132405823060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6381626261836 is a wasteful number, since it uses less digits than its factorization.

6381626261836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13406777889 (or 13406777887 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 58.

The spelling of 6381626261836 in words is "six trillion, three hundred eighty-one billion, six hundred twenty-six million, two hundred sixty-one thousand, eight hundred thirty-six".