2721661532 has 12 divisors (see below), whose sum is σ = 4766527920. Its totient is φ = 1359796416.

The previous prime is 2721661499. The next prime is 2721661541. The reversal of 2721661532 is 2351661272.

It is a junction number, because it is equal to n+sod(n) for n = 2721661492 and 2721661501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252653 + ... + 263204.

It is an arithmetic number, because the mean of its divisors is an integer number (397210660).

Almost surely, 2^2721661532 is an apocalyptic number.

It is an amenable number.

2721661532 is a deficient number, since it is larger than the sum of its proper divisors (2044866388).

2721661532 is a wasteful number, since it uses less digits than its factorization.

2721661532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517180 (or 517178 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 2721661532 is about 52169.5460206431. The cubic root of 2721661532 is about 1396.1905847575.

The spelling of 2721661532 in words is "two billion, seven hundred twenty-one million, six hundred sixty-one thousand, five hundred thirty-two".