2684386062864 has 480 divisors, whose sum is σ = 8808838976000. Its totient is φ = 781402152960.

The previous prime is 2684386062859. The next prime is 2684386062889. The reversal of 2684386062864 is 4682606834862.

2684386062864 is a `hidden beast` number, since 2 + 6 + 8 + 438 + 60 + 62 + 86 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 152782272 + ... + 152799840.

Almost surely, 2^{2684386062864} is an apocalyptic number.

2684386062864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2684386062864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4404419488000).

2684386062864 is an abundant number, since it is smaller than the sum of its proper divisors (6124452913136).

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

2684386062864 is a wasteful number, since it uses less digits than its factorization.

2684386062864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17724 (or 17701 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 63.

The spelling of 2684386062864 in words is "two trillion, six hundred eighty-four billion, three hundred eighty-six million, sixty-two thousand, eight hundred sixty-four".