2748685638 has 16 divisors (see below), whose sum is σ = 5540659200. Its totient is φ = 909013896.

The previous prime is 2748685619. The next prime is 2748685661. The reversal of 2748685638 is 8365868472.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802838 + ... + 1804361.

It is an arithmetic number, because the mean of its divisors is an integer number (346291200).

Almost surely, 2^2748685638 is an apocalyptic number.

2748685638 is an abundant number, since it is smaller than the sum of its proper divisors (2791973562).

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

2748685638 is a wasteful number, since it uses less digits than its factorization.

2748685638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607331.

The product of its digits is 15482880, while the sum is 57.

The square root of 2748685638 is about 52427.9089607816. The cubic root of 2748685638 is about 1400.7964240598.

The spelling of 2748685638 in words is "two billion, seven hundred forty-eight million, six hundred eighty-five thousand, six hundred thirty-eight".