6246564880 has 20 divisors (see below), whose sum is σ = 14523263532. Its totient is φ = 2498625920.

The previous prime is 6246564859. The next prime is 6246564931. The reversal of 6246564880 is 884656426.

It can be written as a sum of positive squares in 2 ways, for example, as 1254859776 + 4991705104 = 35424^2 + 70652^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39040951 + ... + 39041110.

Almost surely, 2^6246564880 is an apocalyptic number.

It is an amenable number.

6246564880 is an abundant number, since it is smaller than the sum of its proper divisors (8276698652).

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

6246564880 is a wasteful number, since it uses less digits than its factorization.

6246564880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78082074 (or 78082068 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The square root of 6246564880 is about 79035.2129117142. The cubic root of 6246564880 is about 1841.6782184006.

The spelling of 6246564880 in words is "six billion, two hundred forty-six million, five hundred sixty-four thousand, eight hundred eighty".