6458426781 has 8 divisors (see below), whose sum is σ = 9064458720. Its totient is φ = 4079006352.

The previous prime is 6458426771. The next prime is 6458426797. The reversal of 6458426781 is 1876248546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6458426781 - 2⁹ = 6458426269 is a prime.

It is a super-2 number, since 2×6458426781² = 83422552971076043922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6458426771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56652810 + ... + 56652923.

It is an arithmetic number, because the mean of its divisors is an integer number (1133057340).

Almost surely, 2^6458426781 is an apocalyptic number.

It is an amenable number.

6458426781 is a deficient number, since it is larger than the sum of its proper divisors (2606031939).

6458426781 is a wasteful number, since it uses less digits than its factorization.

6458426781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113305755.

The product of its digits is 2580480, while the sum is 51.

The square root of 6458426781 is about 80364.3377438028. The cubic root of 6458426781 is about 1862.2682833871.

The spelling of 6458426781 in words is "six billion, four hundred fifty-eight million, four hundred twenty-six thousand, seven hundred eighty-one".