2669671921 has 8 divisors (see below), whose sum is σ = 3066863744. Its totient is φ = 2276432640.

The previous prime is 2669671903. The next prime is 2669671951. The reversal of 2669671921 is 1291769662.

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 2669671921 - 2⁷ = 2669671793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2669671951) 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, 986685 + ... + 989386.

It is an arithmetic number, because the mean of its divisors is an integer number (383357968).

Almost surely, 2^2669671921 is an apocalyptic number.

It is an amenable number.

2669671921 is a deficient number, since it is larger than the sum of its proper divisors (397191823).

2669671921 is a wasteful number, since it uses less digits than its factorization.

2669671921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976271.

The product of its digits is 489888, while the sum is 49.

The square root of 2669671921 is about 51668.8680057924. The cubic root of 2669671921 is about 1387.2432848757.

The spelling of 2669671921 in words is "two billion, six hundred sixty-nine million, six hundred seventy-one thousand, nine hundred twenty-one".