6670269638 has 4 divisors (see below), whose sum is σ = 10005404460. Its totient is φ = 3335134818.

The previous prime is 6670269601. The next prime is 6670269643. The reversal of 6670269638 is 8369620766.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6670269638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1667567408 + ... + 1667567411.

It is an arithmetic number, because the mean of its divisors is an integer number (2501351115).

Almost surely, 2^6670269638 is an apocalyptic number.

6670269638 is a deficient number, since it is larger than the sum of its proper divisors (3335134822).

6670269638 is a wasteful number, since it uses less digits than its factorization.

6670269638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335134821.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 6670269638 is about 81671.7187158443. The cubic root of 6670269638 is about 1882.4110492841.

The spelling of 6670269638 in words is "six billion, six hundred seventy million, two hundred sixty-nine thousand, six hundred thirty-eight".