2689159400 has 48 divisors (see below), whose sum is σ = 6337977900. Its totient is φ = 1060922880.

The previous prime is 2689159397. The next prime is 2689159427. The reversal of 2689159400 is 49519862.

It can be written as a sum of positive squares in 6 ways, for example, as 1203673636 + 1485485764 = 34694^2 + 38542^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77495 + ... + 106694.

Almost surely, 2^2689159400 is an apocalyptic number.

2689159400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2689159400 is an abundant number, since it is smaller than the sum of its proper divisors (3648818500).

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

2689159400 is a wasteful number, since it uses less digits than its factorization.

2689159400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184278 (or 184269 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 2689159400 is about 51857.1055883377. The cubic root of 2689159400 is about 1390.6105352365.

The spelling of 2689159400 in words is "two billion, six hundred eighty-nine million, one hundred fifty-nine thousand, four hundred".