842702021267 has 4 divisors (see below), whose sum is σ = 849134861256. Its totient is φ = 836269181280.

The previous prime is 842702021251. The next prime is 842702021279. The reversal of 842702021267 is 762120207248.

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 842702021267 - 2⁴ = 842702021251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842702020267) 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, 3216419798 + ... + 3216420059.

It is an arithmetic number, because the mean of its divisors is an integer number (212283715314).

Almost surely, 2^842702021267 is an apocalyptic number.

842702021267 is a deficient number, since it is larger than the sum of its proper divisors (6432839989).

842702021267 is a wasteful number, since it uses less digits than its factorization.

842702021267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432839988.

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 842702021267 in words is "eight hundred forty-two billion, seven hundred two million, twenty-one thousand, two hundred sixty-seven".