2638209696 has 48 divisors (see below), whose sum is σ = 6928576704. Its totient is φ = 878987264.

The previous prime is 2638209677. The next prime is 2638209799. The reversal of 2638209696 is 6969028362.

It is a tau number, because it is divible by the number of its divisors (48).

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, 249901 + ... + 260243.

It is an arithmetic number, because the mean of its divisors is an integer number (144345348).

Almost surely, 2^2638209696 is an apocalyptic number.

It is an amenable number.

2638209696 is an abundant number, since it is smaller than the sum of its proper divisors (4290367008).

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

2638209696 is a wasteful number, since it uses less digits than its factorization.

2638209696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13013 (or 13005 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 2638209696 is about 51363.5054878461. The cubic root of 2638209696 is about 1381.7721572138.

The spelling of 2638209696 in words is "two billion, six hundred thirty-eight million, two hundred nine thousand, six hundred ninety-six".