842400866406 has 16 divisors (see below), whose sum is σ = 1837965526848. Its totient is φ = 255272989800.

The previous prime is 842400866381. The next prime is 842400866443. The reversal of 842400866406 is 604668004248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6381824680 + ... + 6381824811.

It is an arithmetic number, because the mean of its divisors is an integer number (114872845428).

Almost surely, 2^842400866406 is an apocalyptic number.

842400866406 is an abundant number, since it is smaller than the sum of its proper divisors (995564660442).

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

842400866406 is a wasteful number, since it uses less digits than its factorization.

842400866406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12763649507.

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 842400866406 in words is "eight hundred forty-two billion, four hundred million, eight hundred sixty-six thousand, four hundred six".