942350543821 has 4 divisors (see below), whose sum is σ = 942506645692. Its totient is φ = 942194441952.

The previous prime is 942350543819. The next prime is 942350543867. The reversal of 942350543821 is 128345053249.

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

It can be written as a sum of positive squares in 2 ways, for example, as 624044701225 + 318305842596 = 789965^2 + 564186^2 .

It is a cyclic number.

It is not a de Polignac number, because 942350543821 - 2¹ = 942350543819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942350543891) 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, 78041880 + ... + 78053953.

It is an arithmetic number, because the mean of its divisors is an integer number (235626661423).

Almost surely, 2^942350543821 is an apocalyptic number.

It is an amenable number.

942350543821 is a deficient number, since it is larger than the sum of its proper divisors (156101871).

942350543821 is a wasteful number, since it uses less digits than its factorization.

942350543821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156101870.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 942350543821 in words is "nine hundred forty-two billion, three hundred fifty million, five hundred forty-three thousand, eight hundred twenty-one".