2129287662 has 60 divisors (see below), whose sum is σ = 4813888200. Its totient is φ = 703448064.

The previous prime is 2129287661. The next prime is 2129287663. The reversal of 2129287662 is 2667829212.

It is an interprime number because it is at equal distance from previous prime (2129287661) and next prime (2129287663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129287661) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8285038 + ... + 8285294.

It is an arithmetic number, because the mean of its divisors is an integer number (80231470).

Almost surely, 2^2129287662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129287662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406944100).

2129287662 is an abundant number, since it is smaller than the sum of its proper divisors (2684600538).

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

2129287662 is an equidigital number, since it uses as much as digits as its factorization.

2129287662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 461 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2129287662 is about 46144.2050749604. The cubic root of 2129287662 is about 1286.5049035392.

The spelling of 2129287662 in words is "two billion, one hundred twenty-nine million, two hundred eighty-seven thousand, six hundred sixty-two".