868819626 has 24 divisors (see below), whose sum is σ = 1900722720. Its totient is φ = 286794216.

The previous prime is 868819621. The next prime is 868819657. The reversal of 868819626 is 626918868.

It is a happy number.

868819626 is a `hidden beast` number, since 8 + 6 + 8 + 8 + 1 + 9 + 626 = 666.

It is not an unprimeable number, because it can be changed into a prime (868819621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232456 + ... + 236163.

It is an arithmetic number, because the mean of its divisors is an integer number (79196780).

Almost surely, 2^868819626 is an apocalyptic number.

868819626 is an abundant number, since it is smaller than the sum of its proper divisors (1031903094).

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

868819626 is a wasteful number, since it uses less digits than its factorization.

868819626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468730 (or 468727 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 868819626 is about 29475.7464027631. The cubic root of 868819626 is about 954.2083389244.

The spelling of 868819626 in words is "eight hundred sixty-eight million, eight hundred nineteen thousand, six hundred twenty-six".