867125680 has 80 divisors (see below), whose sum is σ = 2054805984. Its totient is φ = 340254720.

The previous prime is 867125663. The next prime is 867125683. The reversal of 867125680 is 86521768.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (867125683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016134 + ... + 1016986.

Almost surely, 2^867125680 is an apocalyptic number.

867125680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867125680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027402992).

867125680 is an abundant number, since it is smaller than the sum of its proper divisors (1187680304).

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

867125680 is a wasteful number, since it uses less digits than its factorization.

867125680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 867125680 is about 29446.9978096240. The cubic root of 867125680 is about 953.5877923887.

The spelling of 867125680 in words is "eight hundred sixty-seven million, one hundred twenty-five thousand, six hundred eighty".