842427236646 has 24 divisors (see below), whose sum is σ = 1826634542304. Its totient is φ = 280597458960.

The previous prime is 842427236597. The next prime is 842427236659. The reversal of 842427236646 is 646632724248.

842427236646 is a `hidden beast` number, since 8 + 4 + 2 + 4 + 272 + 366 + 4 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 842427236592 and 842427236601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17610445 + ... + 17658216.

It is an arithmetic number, because the mean of its divisors is an integer number (76109772596).

Almost surely, 2^842427236646 is an apocalyptic number.

842427236646 is an abundant number, since it is smaller than the sum of its proper divisors (984207305658).

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

842427236646 is a wasteful number, since it uses less digits than its factorization.

842427236646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35269996 (or 35269993 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 54.

The spelling of 842427236646 in words is "eight hundred forty-two billion, four hundred twenty-seven million, two hundred thirty-six thousand, six hundred forty-six".