42846847421666 has 8 divisors (see below), whose sum is σ = 65229528910800. Its totient is φ = 21103671118068.

The previous prime is 42846847421629. The next prime is 42846847421669. The reversal of 42846847421666 is 66612474864824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42846847421596 and 42846847421605.

It is not an unprimeable number, because it can be changed into a prime (42846847421669) 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, 159876296216 + ... + 159876296483.

It is an arithmetic number, because the mean of its divisors is an integer number (8153691113850).

Almost surely, 2^{42846847421666} is an apocalyptic number.

42846847421666 is a deficient number, since it is larger than the sum of its proper divisors (22382681489134).

42846847421666 is a wasteful number, since it uses less digits than its factorization.

42846847421666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319752592768.

The product of its digits is 594542592, while the sum is 68.

The spelling of 42846847421666 in words is "forty-two trillion, eight hundred forty-six billion, eight hundred forty-seven million, four hundred twenty-one thousand, six hundred sixty-six".