867485349621 has 64 divisors (see below), whose sum is σ = 1427171788800. Its totient is φ = 516325651200.

The previous prime is 867485349617. The next prime is 867485349623. The reversal of 867485349621 is 126943584768.

867485349621 is a `hidden beast` number, since 8 + 6 + 7 + 4 + 8 + 534 + 96 + 2 + 1 = 666.

It is not a de Polignac number, because 867485349621 - 2² = 867485349617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867485349623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18042205 + ... + 18090221.

It is an arithmetic number, because the mean of its divisors is an integer number (22299559200).

Almost surely, 2^867485349621 is an apocalyptic number.

It is an amenable number.

867485349621 is a deficient number, since it is larger than the sum of its proper divisors (559686439179).

867485349621 is a wasteful number, since it uses less digits than its factorization.

867485349621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49127 (or 49121 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 867485349621 in words is "eight hundred sixty-seven billion, four hundred eighty-five million, three hundred forty-nine thousand, six hundred twenty-one".