21846242946 has 32 divisors (see below), whose sum is σ = 48317479488. Its totient is φ = 6529386240.

The previous prime is 21846242933. The next prime is 21846242983. The reversal of 21846242946 is 64924264812.

It is a junction number, because it is equal to n+sod(n) for n = 21846242895 and 21846242904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2262331 + ... + 2271966.

It is an arithmetic number, because the mean of its divisors is an integer number (1509921234).

Almost surely, 2^21846242946 is an apocalyptic number.

21846242946 is an abundant number, since it is smaller than the sum of its proper divisors (26471236542).

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

21846242946 is a wasteful number, since it uses less digits than its factorization.

21846242946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534386.

The product of its digits is 1327104, while the sum is 48.

The spelling of 21846242946 in words is "twenty-one billion, eight hundred forty-six million, two hundred forty-two thousand, nine hundred forty-six".