3866866670370 has 64 divisors (see below), whose sum is σ = 10397785988736. Its totient is φ = 912086484480.

The previous prime is 3866866670291. The next prime is 3866866670371. The reversal of 3866866670370 is 730766686683.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (3866866670371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158336139 + ... + 158360558.

It is an arithmetic number, because the mean of its divisors is an integer number (162465406074).

Almost surely, 2^{3866866670370} is an apocalyptic number.

3866866670370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3866866670370 is an abundant number, since it is smaller than the sum of its proper divisors (6530919318366).

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

3866866670370 is a wasteful number, since it uses less digits than its factorization.

3866866670370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316696755.

The product of its (nonzero) digits is 219469824, while the sum is 66.

The spelling of 3866866670370 in words is "three trillion, eight hundred sixty-six billion, eight hundred sixty-six million, six hundred seventy thousand, three hundred seventy".