868945268921524 has 6 divisors (see below), whose sum is σ = 1520654220612674. Its totient is φ = 434472634460760.

The previous prime is 868945268921507. The next prime is 868945268921537. The reversal of 868945268921524 is 425129862549868.

It can be written as a sum of positive squares in only one way, i.e., 487399757345424 + 381545511576100 = 22077132^2 + 19533190^2 .

It is a super-3 number, since 3×868945268921524³ (a number of 46 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108618158615187 + ... + 108618158615194.

Almost surely, 2^{868945268921524} is an apocalyptic number.

It is an amenable number.

868945268921524 is a deficient number, since it is larger than the sum of its proper divisors (651708951691150).

868945268921524 is a wasteful number, since it uses less digits than its factorization.

868945268921524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217236317230385 (or 217236317230383 counting only the distinct ones).

The product of its digits is 4777574400, while the sum is 79.

The spelling of 868945268921524 in words is "eight hundred sixty-eight trillion, nine hundred forty-five billion, two hundred sixty-eight million, nine hundred twenty-one thousand, five hundred twenty-four".