942457813645 has 4 divisors (see below), whose sum is σ = 1130949376380. Its totient is φ = 753966250912.

The previous prime is 942457813631. The next prime is 942457813669. The reversal of 942457813645 is 546318754249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546318754249 = 2503 ⋅218265583.

It can be written as a sum of positive squares in 2 ways, for example, as 210882089961 + 731575723684 = 459219^2 + 855322^2 .

It is a cyclic number.

It is not a de Polignac number, because 942457813645 - 2¹³ = 942457805453 is a prime.

It is a super-3 number, since 3×942457813645³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 942457813645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94245781360 + ... + 94245781369.

It is an arithmetic number, because the mean of its divisors is an integer number (282737344095).

Almost surely, 2^942457813645 is an apocalyptic number.

It is an amenable number.

942457813645 is a deficient number, since it is larger than the sum of its proper divisors (188491562735).

942457813645 is a wasteful number, since it uses less digits than its factorization.

942457813645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188491562734.

The product of its digits is 29030400, while the sum is 58.

The spelling of 942457813645 in words is "nine hundred forty-two billion, four hundred fifty-seven million, eight hundred thirteen thousand, six hundred forty-five".