867451243672 has 32 divisors (see below), whose sum is σ = 1827740083680. Its totient is φ = 382955063040.

The previous prime is 867451243661. The next prime is 867451243717. The reversal of 867451243672 is 276342154768.

867451243672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 181321029 + ... + 181325812.

It is an arithmetic number, because the mean of its divisors is an integer number (57116877615).

Almost surely, 2^867451243672 is an apocalyptic number.

It is an amenable number.

867451243672 is an abundant number, since it is smaller than the sum of its proper divisors (960288840008).

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

867451243672 is a wasteful number, since it uses less digits than its factorization.

867451243672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362646883 (or 362646879 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 55.

The spelling of 867451243672 in words is "eight hundred sixty-seven billion, four hundred fifty-one million, two hundred forty-three thousand, six hundred seventy-two".