21846835654 has 16 divisors (see below), whose sum is σ = 38659838976. Its totient is φ = 9060899400.

The previous prime is 21846835631. The next prime is 21846835657. The reversal of 21846835654 is 45653864812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21846835657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25168732 + ... + 25169599.

It is an arithmetic number, because the mean of its divisors is an integer number (2416239936).

Almost surely, 2^21846835654 is an apocalyptic number.

21846835654 is a deficient number, since it is larger than the sum of its proper divisors (16813003322).

21846835654 is a wasteful number, since it uses less digits than its factorization.

21846835654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50338371.

The product of its digits is 5529600, while the sum is 52.

The spelling of 21846835654 in words is "twenty-one billion, eight hundred forty-six million, eight hundred thirty-five thousand, six hundred fifty-four".