3875643466 has 4 divisors (see below), whose sum is σ = 5813465202. Its totient is φ = 1937821732.

The previous prime is 3875643419. The next prime is 3875643487. The reversal of 3875643466 is 6643465783.

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

It can be written as a sum of positive squares in only one way, i.e., 3312578025 + 563065441 = 57555^2 + 23729^2 .

It is a super-2 number, since 2×3875643466² = 30041224551096986312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968910865 + ... + 968910868.

Almost surely, 2^3875643466 is an apocalyptic number.

3875643466 is a deficient number, since it is larger than the sum of its proper divisors (1937821736).

3875643466 is a wasteful number, since it uses less digits than its factorization.

3875643466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937821735.

The product of its digits is 8709120, while the sum is 52.

The square root of 3875643466 is about 62254.6662186860. Note that the first 3 decimals coincide. The cubic root of 3875643466 is about 1570.7772620996. Note that the first 3 decimals are identical.

The spelling of 3875643466 in words is "three billion, eight hundred seventy-five million, six hundred forty-three thousand, four hundred sixty-six".