867298256772 has 24 divisors (see below), whose sum is σ = 2142736870176. Its totient is φ = 272093570688.

The previous prime is 867298256729. The next prime is 867298256801. The reversal of 867298256772 is 277652892768.

It is a junction number, because it is equal to n+sod(n) for n = 867298256697 and 867298256706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125730818 + ... + 2125731225.

It is an arithmetic number, because the mean of its divisors is an integer number (89280702924).

Almost surely, 2^867298256772 is an apocalyptic number.

It is an amenable number.

867298256772 is an abundant number, since it is smaller than the sum of its proper divisors (1275438613404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

867298256772 is a wasteful number, since it uses less digits than its factorization.

867298256772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251462067 (or 4251462065 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 69.

The spelling of 867298256772 in words is "eight hundred sixty-seven billion, two hundred ninety-eight million, two hundred fifty-six thousand, seven hundred seventy-two".