6426620056 has 8 divisors (see below), whose sum is σ = 12049912620. Its totient is φ = 3213310024.

The previous prime is 6426620051. The next prime is 6426620063. The reversal of 6426620056 is 6500266246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6426619997 and 6426620024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426620051) 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 as a sum of consecutive naturals, namely, 401663746 + ... + 401663761.

Almost surely, 2^6426620056 is an apocalyptic number.

It is an amenable number.

6426620056 is a deficient number, since it is larger than the sum of its proper divisors (5623292564).

6426620056 is a wasteful number, since it uses less digits than its factorization.

6426620056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803327513 (or 803327509 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 6426620056 is about 80166.2027041321. The cubic root of 6426620056 is about 1859.2061259282.

The spelling of 6426620056 in words is "six billion, four hundred twenty-six million, six hundred twenty thousand, fifty-six".