868167380025 has 81 divisors (see below), whose sum is σ = 1709500280943. Its totient is φ = 420855098400.

The previous prime is 868167379993. The next prime is 868167380029. The reversal of 868167380025 is 520083761868.

The square root of 868167380025 is 931755.

It is a perfect power (a square), and thus also a powerful number.

868167380025 is a `hidden beast` number, since 86 + 8 + 167 + 380 + 0 + 25 = 666.

868167380025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 312540256809 + 555627123216 = 559053^2 + 745404^2 .

It is not a de Polignac number, because 868167380025 - 2⁵ = 868167379993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868167380029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 153736752 + ... + 153742398.

Almost surely, 2^868167380025 is an apocalyptic number.

868167380025 is the 931755-th square number.

868167380025 is the 465878-th centered octagonal number.

It is an amenable number.

868167380025 is a deficient number, since it is larger than the sum of its proper divisors (841332900918).

868167380025 is an equidigital number, since it uses as much as digits as its factorization.

868167380025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 5666 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 868167380025 in words is "eight hundred sixty-eight billion, one hundred sixty-seven million, three hundred eighty thousand, twenty-five".