2669187138 has 16 divisors (see below), whose sum is σ = 5418052320. Its totient is φ = 876449376.

The previous prime is 2669187137. The next prime is 2669187139. The reversal of 2669187138 is 8317819662.

It is an interprime number because it is at equal distance from previous prime (2669187137) and next prime (2669187139).

It is not an unprimeable number, because it can be changed into a prime (2669187137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319483 + ... + 3320286.

It is an arithmetic number, because the mean of its divisors is an integer number (338628270).

Almost surely, 2^2669187138 is an apocalyptic number.

2669187138 is an abundant number, since it is smaller than the sum of its proper divisors (2748865182).

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

2669187138 is a wasteful number, since it uses less digits than its factorization.

2669187138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6639841.

The product of its digits is 870912, while the sum is 51.

The square root of 2669187138 is about 51664.1765442942. The cubic root of 2669187138 is about 1387.1593104284.

The spelling of 2669187138 in words is "two billion, six hundred sixty-nine million, one hundred eighty-seven thousand, one hundred thirty-eight".