2689371320538 has 64 divisors (see below), whose sum is σ = 6218680025088. Its totient is φ = 759499865280.

The previous prime is 2689371320521. The next prime is 2689371320561. The reversal of 2689371320538 is 8350231739862.

It is a super-4 number, since 4×2689371320538⁴ (a number of 51 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191781 + ... + 2327127.

It is an arithmetic number, because the mean of its divisors is an integer number (97166875392).

Almost surely, 2^{2689371320538} is an apocalyptic number.

2689371320538 is an abundant number, since it is smaller than the sum of its proper divisors (3529308704550).

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

2689371320538 is a wasteful number, since it uses less digits than its factorization.

2689371320538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135707.

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 2689371320538 in words is "two trillion, six hundred eighty-nine billion, three hundred seventy-one million, three hundred twenty thousand, five hundred thirty-eight".