6426730856 has 64 divisors (see below), whose sum is σ = 15039924480. Its totient is φ = 2506613760.

The previous prime is 6426730841. The next prime is 6426730859. The reversal of 6426730856 is 6580376246.

It is a self number, because there is not a number n which added to its sum of digits gives 6426730856.

It is not an unprimeable number, because it can be changed into a prime (6426730859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10481 + ... + 113856.

It is an arithmetic number, because the mean of its divisors is an integer number (234998820).

Almost surely, 2^6426730856 is an apocalyptic number.

It is an amenable number.

6426730856 is an abundant number, since it is smaller than the sum of its proper divisors (8613193624).

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

6426730856 is a wasteful number, since it uses less digits than its factorization.

6426730856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124434 (or 124430 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 6426730856 is about 80166.8937654441. The cubic root of 6426730856 is about 1859.2168105936.

The spelling of 6426730856 in words is "six billion, four hundred twenty-six million, seven hundred thirty thousand, eight hundred fifty-six".