2756728636 has 12 divisors (see below), whose sum is σ = 5108056128. Its totient is φ = 1297284032.

The previous prime is 2756728613. The next prime is 2756728657. The reversal of 2756728636 is 6368276572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20269996 + ... + 20270131.

It is an arithmetic number, because the mean of its divisors is an integer number (425671344).

Almost surely, 2^2756728636 is an apocalyptic number.

It is an amenable number.

2756728636 is a deficient number, since it is larger than the sum of its proper divisors (2351327492).

2756728636 is a wasteful number, since it uses less digits than its factorization.

2756728636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40540148 (or 40540146 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The square root of 2756728636 is about 52504.5582402138. The cubic root of 2756728636 is about 1402.1613954177.

The spelling of 2756728636 in words is "two billion, seven hundred fifty-six million, seven hundred twenty-eight thousand, six hundred thirty-six".