2757831664 has 80 divisors (see below), whose sum is σ = 6530314176. Its totient is φ = 1101312000.

The previous prime is 2757831611. The next prime is 2757831679. The reversal of 2757831664 is 4661387572.

It is a super-2 number, since 2×2757831664² = 15211270973922017792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185134 + ... + 199474.

Almost surely, 2^2757831664 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 2757831664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265157088).

2757831664 is an abundant number, since it is smaller than the sum of its proper divisors (3772482512).

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

2757831664 is a wasteful number, since it uses less digits than its factorization.

2757831664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14474 (or 14468 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The square root of 2757831664 is about 52515.0613062577. The cubic root of 2757831664 is about 1402.3483823928.

The spelling of 2757831664 in words is "two billion, seven hundred fifty-seven million, eight hundred thirty-one thousand, six hundred sixty-four".