3865840198276 has 45 divisors (see below), whose sum is σ = 7892680855031. Its totient is φ = 1656706077096.

The previous prime is 3865840198109. The next prime is 3865840198307. The reversal of 3865840198276 is 6728910485683.

The square root of 3865840198276 is 1966174.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 192675021 + ... + 192695083.

It is a 1-persistent number, because it is pandigital, but 2⋅3865840198276 = 7731680396552 is not.

Almost surely, 2^{3865840198276} is an apocalyptic number.

3865840198276 is the 1966174-th square number.

It is an amenable number.

3865840198276 is an abundant number, since it is smaller than the sum of its proper divisors (4026840656755).

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

3865840198276 is an frugal number, since it uses more digits than its factorization.

3865840198276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40158 (or 20072 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 67.

The spelling of 3865840198276 in words is "three trillion, eight hundred sixty-five billion, eight hundred forty million, one hundred ninety-eight thousand, two hundred seventy-six".