21835739054870 has 32 divisors (see below), whose sum is σ = 42373303247520. Its totient is φ = 8053748075520.

The previous prime is 21835739054849. The next prime is 21835739054933. The reversal of 21835739054870 is 7845093753812.

It is a congruent number.

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, 90281396 + ... + 90522935.

It is an arithmetic number, because the mean of its divisors is an integer number (1324165726485).

Almost surely, 2^{21835739054870} is an apocalyptic number.

21835739054870 is a deficient number, since it is larger than the sum of its proper divisors (20537564192650).

21835739054870 is a wasteful number, since it uses less digits than its factorization.

21835739054870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180805280.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 21835739054870 in words is "twenty-one trillion, eight hundred thirty-five billion, seven hundred thirty-nine million, fifty-four thousand, eight hundred seventy".