868420347923 has 4 divisors (see below), whose sum is σ = 870997263240. Its totient is φ = 865843432608.

The previous prime is 868420347917. The next prime is 868420347929. The reversal of 868420347923 is 329743024868.

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

It is an interprime number because it is at equal distance from previous prime (868420347917) and next prime (868420347929).

It is a cyclic number.

It is not a de Polignac number, because 868420347923 - 2⁸ = 868420347667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868420347929) 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, 1288457153 + ... + 1288457826.

It is an arithmetic number, because the mean of its divisors is an integer number (217749315810).

Almost surely, 2^868420347923 is an apocalyptic number.

868420347923 is a deficient number, since it is larger than the sum of its proper divisors (2576915317).

868420347923 is a wasteful number, since it uses less digits than its factorization.

868420347923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576915316.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 868420347923 in words is "eight hundred sixty-eight billion, four hundred twenty million, three hundred forty-seven thousand, nine hundred twenty-three".