1866853368347 has 16 divisors (see below), whose sum is σ = 2039891303040. Its totient is φ = 1694370182400.

The previous prime is 1866853368329. The next prime is 1866853368371. The reversal of 1866853368347 is 7438633586681.

It is a cyclic number.

It is not a de Polignac number, because 1866853368347 - 2²⁶ = 1866786259483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1866853365347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67286804 + ... + 67314542.

It is an arithmetic number, because the mean of its divisors is an integer number (127493206440).

Almost surely, 2^{1866853368347} is an apocalyptic number.

1866853368347 is a deficient number, since it is larger than the sum of its proper divisors (173037934693).

1866853368347 is a wasteful number, since it uses less digits than its factorization.

1866853368347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37514.

The product of its digits is 418037760, while the sum is 68.

The spelling of 1866853368347 in words is "one trillion, eight hundred sixty-six billion, eight hundred fifty-three million, three hundred sixty-eight thousand, three hundred forty-seven".