868489068549 has 16 divisors (see below), whose sum is σ = 1175163845760. Its totient is φ = 570449806080.

The previous prime is 868489068481. The next prime is 868489068553. The reversal of 868489068549 is 945860984868.

It is not a de Polignac number, because 868489068549 - 2²⁵ = 868455514117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868489068149) 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, 5712817 + ... + 5862870.

It is an arithmetic number, because the mean of its divisors is an integer number (73447740360).

Almost surely, 2^868489068549 is an apocalyptic number.

868489068549 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

868489068549 is a deficient number, since it is larger than the sum of its proper divisors (306674777211).

868489068549 is a wasteful number, since it uses less digits than its factorization.

868489068549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11576060.

The product of its (nonzero) digits is 955514880, while the sum is 75.

The spelling of 868489068549 in words is "eight hundred sixty-eight billion, four hundred eighty-nine million, sixty-eight thousand, five hundred forty-nine".