3872566478 has 16 divisors (see below), whose sum is σ = 6339803904. Its totient is φ = 1759458360.

The previous prime is 3872566403. The next prime is 3872566513. The reversal of 3872566478 is 8746652783.

It is a super-2 number, since 2×3872566478² = 29993542253058648968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11051 + ... + 88697.

It is an arithmetic number, because the mean of its divisors is an integer number (396237744).

Almost surely, 2^3872566478 is an apocalyptic number.

3872566478 is a deficient number, since it is larger than the sum of its proper divisors (2467237426).

3872566478 is a wasteful number, since it uses less digits than its factorization.

3872566478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79927.

The product of its digits is 13547520, while the sum is 56.

The square root of 3872566478 is about 62229.9484010713. The cubic root of 3872566478 is about 1570.3614565280.

The spelling of 3872566478 in words is "three billion, eight hundred seventy-two million, five hundred sixty-six thousand, four hundred seventy-eight".