6248786064681 has 4 divisors (see below), whose sum is σ = 8331714752912. Its totient is φ = 4165857376452.

The previous prime is 6248786064673. The next prime is 6248786064701. The reversal of 6248786064681 is 1864606878426.

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 not a de Polignac number, because 6248786064681 - 2³ = 6248786064673 is a prime.

It is a super-2 number, since 2×6248786064681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6248786064611) 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 in 3 ways as a sum of consecutive naturals, for example, 1041464344111 + ... + 1041464344116.

It is an arithmetic number, because the mean of its divisors is an integer number (2082928688228).

Almost surely, 2^{6248786064681} is an apocalyptic number.

It is an amenable number.

6248786064681 is a deficient number, since it is larger than the sum of its proper divisors (2082928688231).

6248786064681 is a wasteful number, since it uses less digits than its factorization.

6248786064681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082928688230.

The product of its (nonzero) digits is 148635648, while the sum is 66.

The spelling of 6248786064681 in words is "six trillion, two hundred forty-eight billion, seven hundred eighty-six million, sixty-four thousand, six hundred eighty-one".