3865266750000 has 140 divisors (see below), whose sum is σ = 12481433204360. Its totient is φ = 1030737600000.

The previous prime is 3865266749951. The next prime is 3865266750011. The reversal of 3865266750000 is 576625683.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 27 ways as a sum of consecutive naturals, for example, 1826845 + ... + 3326844.

Almost surely, 2^{3865266750000} is an apocalyptic number.

3865266750000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3865266750000 is an abundant number, since it is smaller than the sum of its proper divisors (8616166454360).

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

3865266750000 is an frugal number, since it uses more digits than its factorization.

3865266750000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153730 (or 5153699 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 3865266750000 in words is "three trillion, eight hundred sixty-five billion, two hundred sixty-six million, seven hundred fifty thousand".