2752681638 has 16 divisors (see below), whose sum is σ = 6291843840. Its totient is φ = 786480456.

The previous prime is 2752681621. The next prime is 2752681643. The reversal of 2752681638 is 8361862572.

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 7 ways as a sum of consecutive naturals, for example, 32769978 + ... + 32770061.

It is an arithmetic number, because the mean of its divisors is an integer number (393240240).

Almost surely, 2^2752681638 is an apocalyptic number.

2752681638 is an abundant number, since it is smaller than the sum of its proper divisors (3539162202).

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

2752681638 is a wasteful number, since it uses less digits than its factorization.

2752681638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65540051.

The product of its digits is 967680, while the sum is 48.

The square root of 2752681638 is about 52466.0045934508. The cubic root of 2752681638 is about 1401.4749146639.

The spelling of 2752681638 in words is "two billion, seven hundred fifty-two million, six hundred eighty-one thousand, six hundred thirty-eight".