868680619 has 4 divisors (see below), whose sum is σ = 872409096. Its totient is φ = 864952144.

The previous prime is 868680613. The next prime is 868680641. The reversal of 868680619 is 916086868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868680619 - 2¹¹ = 868678571 is a prime.

It is a super-2 number, since 2×868680619² = 1509212035652446322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868680613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863889 + ... + 1864354.

It is an arithmetic number, because the mean of its divisors is an integer number (218102274).

Almost surely, 2^868680619 is an apocalyptic number.

868680619 is a deficient number, since it is larger than the sum of its proper divisors (3728477).

868680619 is a wasteful number, since it uses less digits than its factorization.

868680619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728476.

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 868680619 is about 29473.3883189565. The cubic root of 868680619 is about 954.1574466144.

The spelling of 868680619 in words is "eight hundred sixty-eight million, six hundred eighty thousand, six hundred nineteen".