42846828661845 has 96 divisors (see below), whose sum is σ = 80212360082400. Its totient is φ = 21032773926912.

The previous prime is 42846828661837. The next prime is 42846828661877. The reversal of 42846828661845 is 54816682864824.

It is a happy number.

42846828661845 is a `hidden beast` number, since 4 + 2 + 8 + 468 + 2 + 86 + 6 + 1 + 84 + 5 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 14538374178084 + 28308454483761 = 3812922^2 + 5320569^2 .

It is not a de Polignac number, because 42846828661845 - 2³ = 42846828661837 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 741150301 + ... + 741208109.

It is an arithmetic number, because the mean of its divisors is an integer number (835545417525).

Almost surely, 2^{42846828661845} is an apocalyptic number.

42846828661845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42846828661845 is a deficient number, since it is larger than the sum of its proper divisors (37365531420555).

42846828661845 is a wasteful number, since it uses less digits than its factorization.

42846828661845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61479 (or 61476 counting only the distinct ones).

The product of its digits is 1132462080, while the sum is 72.

The spelling of 42846828661845 in words is "forty-two trillion, eight hundred forty-six billion, eight hundred twenty-eight million, six hundred sixty-one thousand, eight hundred forty-five".