2758986664 has 32 divisors (see below), whose sum is σ = 5934124800. Its totient is φ = 1178020800.

The previous prime is 2758986623. The next prime is 2758986667. The reversal of 2758986664 is 4666898572.

It is a super-2 number, since 2×2758986664² = 15224014824259697792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2758986667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76512 + ... + 106639.

It is an arithmetic number, because the mean of its divisors is an integer number (185441400).

Almost surely, 2^2758986664 is an apocalyptic number.

It is an amenable number.

2758986664 is an abundant number, since it is smaller than the sum of its proper divisors (3175138136).

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

2758986664 is a wasteful number, since it uses less digits than its factorization.

2758986664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183433 (or 183429 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The square root of 2758986664 is about 52526.0570003118. The cubic root of 2758986664 is about 1402.5441263099.

The spelling of 2758986664 in words is "two billion, seven hundred fifty-eight million, nine hundred eighty-six thousand, six hundred sixty-four".