4187872866 has 16 divisors (see below), whose sum is σ = 8553953664. Its totient is φ = 1366256304.

The previous prime is 4187872849. The next prime is 4187872883. The reversal of 4187872866 is 6682787814.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4187872849) and next prime (4187872883).

It is a Curzon 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, 7425025 + ... + 7425588.

It is an arithmetic number, because the mean of its divisors is an integer number (534622104).

Almost surely, 2^4187872866 is an apocalyptic number.

4187872866 is an abundant number, since it is smaller than the sum of its proper divisors (4366080798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4187872866 is a wasteful number, since it uses less digits than its factorization.

4187872866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14850665.

The product of its digits is 7225344, while the sum is 57.

The square root of 4187872866 is about 64713.7764776558. The cubic root of 4187872866 is about 1611.8742708167.

The spelling of 4187872866 in words is "four billion, one hundred eighty-seven million, eight hundred seventy-two thousand, eight hundred sixty-six".