3866666854 has 4 divisors (see below), whose sum is σ = 5800000284. Its totient is φ = 1933333426.

The previous prime is 3866666851. The next prime is 3866666857. The reversal of 3866666854 is 4586666683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4586666683 = 37489 ⋅122347.

It is an interprime number because it is at equal distance from previous prime (3866666851) and next prime (3866666857).

It is a super-2 number, since 2×3866666854² = 29902225119644514632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866666851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966666712 + ... + 966666715.

It is an arithmetic number, because the mean of its divisors is an integer number (1450000071).

Almost surely, 2^3866666854 is an apocalyptic number.

3866666854 is a deficient number, since it is larger than the sum of its proper divisors (1933333430).

3866666854 is a wasteful number, since it uses less digits than its factorization.

3866666854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933333429.

The product of its digits is 29859840, while the sum is 58.

The square root of 3866666854 is about 62182.5285269102. The cubic root of 3866666854 is about 1569.5636005639.

The spelling of 3866666854 in words is "three billion, eight hundred sixty-six million, six hundred sixty-six thousand, eight hundred fifty-four".