2751489680 has 20 divisors (see below), whose sum is σ = 6397213692. Its totient is φ = 1100595840.

The previous prime is 2751489679. The next prime is 2751489683. The reversal of 2751489680 is 869841572.

It can be written as a sum of positive squares in 2 ways, for example, as 415507456 + 2335982224 = 20384^2 + 48332^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2751489683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17196731 + ... + 17196890.

Almost surely, 2^2751489680 is an apocalyptic number.

2751489680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2751489680 is an abundant number, since it is smaller than the sum of its proper divisors (3645724012).

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

2751489680 is a wasteful number, since it uses less digits than its factorization.

2751489680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34393634 (or 34393628 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 2751489680 is about 52454.6440270068. The cubic root of 2751489680 is about 1401.2725979618.

The spelling of 2751489680 in words is "two billion, seven hundred fifty-one million, four hundred eighty-nine thousand, six hundred eighty".