3865599911212 has 192 divisors, whose sum is σ = 7685174827008. Its totient is φ = 1689569280000.

The previous prime is 3865599911171. The next prime is 3865599911231. The reversal of 3865599911212 is 2121199955683.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (10497600) is a multiple of the sum of its prime factors (1440).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3981049887 + ... + 3981050857.

It is an arithmetic number, because the mean of its divisors is an integer number (40026952224).

Almost surely, 2^{3865599911212} is an apocalyptic number.

It is an amenable number.

3865599911212 is a deficient number, since it is larger than the sum of its proper divisors (3819574915796).

3865599911212 is a wasteful number, since it uses less digits than its factorization.

3865599911212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 61.

The spelling of 3865599911212 in words is "three trillion, eight hundred sixty-five billion, five hundred ninety-nine million, nine hundred eleven thousand, two hundred twelve".