3078686664 has 128 divisors (see below), whose sum is σ = 8711884800. Its totient is φ = 1007173440.

The previous prime is 3078686651. The next prime is 3078686687. The reversal of 3078686664 is 4666868703.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 3078686664.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5628039 + ... + 5628585.

It is an arithmetic number, because the mean of its divisors is an integer number (68061600).

Almost surely, 2^3078686664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3078686664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4355942400).

3078686664 is an abundant number, since it is smaller than the sum of its proper divisors (5633198136).

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

3078686664 is a wasteful number, since it uses less digits than its factorization.

3078686664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The square root of 3078686664 is about 55485.9141043923. The cubic root of 3078686664 is about 1454.7504386517.

The spelling of 3078686664 in words is "three billion, seventy-eight million, six hundred eighty-six thousand, six hundred sixty-four".