6456795780 has 48 divisors (see below), whose sum is σ = 18110897280. Its totient is φ = 1718777088.

The previous prime is 6456795769. The next prime is 6456795811. The reversal of 6456795780 is 875976546.

It is a self number, because there is not a number n which added to its sum of digits gives 6456795780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60424 + ... + 128703.

It is an arithmetic number, because the mean of its divisors is an integer number (377310360).

Almost surely, 2^6456795780 is an apocalyptic number.

6456795780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6456795780 is an abundant number, since it is smaller than the sum of its proper divisors (11654101500).

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

6456795780 is a wasteful number, since it uses less digits than its factorization.

6456795780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189708 (or 189706 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 57.

The square root of 6456795780 is about 80354.1895609681. The cubic root of 6456795780 is about 1862.1115054155. Note that the first 3 decimals are identical.

The spelling of 6456795780 in words is "six billion, four hundred fifty-six million, seven hundred ninety-five thousand, seven hundred eighty".