2188630969 has 8 divisors (see below), whose sum is σ = 2581979648. Its totient is φ = 1815454080.

The previous prime is 2188630933. The next prime is 2188630973. The reversal of 2188630969 is 9690368812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2188630969 - 2¹⁷ = 2188499897 is a prime.

It is a super-2 number, since 2×2188630969² = 9580211036931757922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2188630979) 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, 5042712 + ... + 5043145.

It is an arithmetic number, because the mean of its divisors is an integer number (322747456).

Almost surely, 2^2188630969 is an apocalyptic number.

It is an amenable number.

2188630969 is a deficient number, since it is larger than the sum of its proper divisors (393348679).

2188630969 is a wasteful number, since it uses less digits than its factorization.

2188630969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10085895.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The square root of 2188630969 is about 46782.8063395090. The cubic root of 2188630969 is about 1298.3472031042.

The spelling of 2188630969 in words is "two billion, one hundred eighty-eight million, six hundred thirty thousand, nine hundred sixty-nine".