2738919638 has 32 divisors (see below), whose sum is σ = 5179809600. Its totient is φ = 1057098240.

The previous prime is 2738919611. The next prime is 2738919641. The reversal of 2738919638 is 8369198372.

2738919638 = 7232² + 7233² + ... + 7283².

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 15 ways as a sum of consecutive naturals, for example, 176063 + ... + 190986.

It is an arithmetic number, because the mean of its divisors is an integer number (161869050).

Almost surely, 2^2738919638 is an apocalyptic number.

2738919638 is a deficient number, since it is larger than the sum of its proper divisors (2440889962).

2738919638 is a wasteful number, since it uses less digits than its factorization.

2738919638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367112.

The product of its digits is 3919104, while the sum is 56.

The square root of 2738919638 is about 52334.6886682246. The cubic root of 2738919638 is about 1399.1354590878.

The spelling of 2738919638 in words is "two billion, seven hundred thirty-eight million, nine hundred nineteen thousand, six hundred thirty-eight".