868572727421 has 12 divisors (see below), whose sum is σ = 1054310108832. Its totient is φ = 712121738328.

The previous prime is 868572727403. The next prime is 868572727433. The reversal of 868572727421 is 124727275868.

It is a happy number.

868572727421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 868572727421 - 2²⁶ = 868505618557 is a prime.

It is a super-2 number, since 2×868572727421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868572727441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385346135 + ... + 385348388.

It is an arithmetic number, because the mean of its divisors is an integer number (87859175736).

Almost surely, 2^868572727421 is an apocalyptic number.

It is an amenable number.

868572727421 is a deficient number, since it is larger than the sum of its proper divisors (185737381411).

868572727421 is a wasteful number, since it uses less digits than its factorization.

868572727421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770694560 (or 770694553 counting only the distinct ones).

The product of its digits is 21073920, while the sum is 59.

The spelling of 868572727421 in words is "eight hundred sixty-eight billion, five hundred seventy-two million, seven hundred twenty-seven thousand, four hundred twenty-one".