2689413554 has 4 divisors (see below), whose sum is σ = 4034120334. Its totient is φ = 1344706776.

The previous prime is 2689413553. The next prime is 2689413563. The reversal of 2689413554 is 4553149862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2680443529 + 8970025 = 51773^2 + 2995^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2689413499 and 2689413508.

It is not an unprimeable number, because it can be changed into a prime (2689413553) by changing a digit.

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 as a sum of consecutive naturals, namely, 672353387 + ... + 672353390.

Almost surely, 2^2689413554 is an apocalyptic number.

2689413554 is a deficient number, since it is larger than the sum of its proper divisors (1344706780).

2689413554 is a wasteful number, since it uses less digits than its factorization.

2689413554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344706779.

The product of its digits is 1036800, while the sum is 47.

The square root of 2689413554 is about 51859.5560528626. The cubic root of 2689413554 is about 1390.6543429900.

The spelling of 2689413554 in words is "two billion, six hundred eighty-nine million, four hundred thirteen thousand, five hundred fifty-four".