2689418629 has 2 divisors, whose sum is σ = 2689418630. Its totient is φ = 2689418628.

The previous prime is 2689418597. The next prime is 2689418647. The reversal of 2689418629 is 9268149862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2659464900 + 29953729 = 51570^2 + 5473^2 .

It is a cyclic number.

It is not a de Polignac number, because 2689418629 - 2⁵ = 2689418597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2689418629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2689418689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344709314 + 1344709315.

It is an arithmetic number, because the mean of its divisors is an integer number (1344709315).

Almost surely, 2^2689418629 is an apocalyptic number.

It is an amenable number.

2689418629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689418629 is an equidigital number, since it uses as much as digits as its factorization.

2689418629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 55.

The square root of 2689418629 is about 51859.6049830694. The cubic root of 2689418629 is about 1390.6552177242.

The spelling of 2689418629 in words is "two billion, six hundred eighty-nine million, four hundred eighteen thousand, six hundred twenty-nine".