21854233270 has 16 divisors (see below), whose sum is σ = 39339406080. Its totient is φ = 8741296384.

The previous prime is 21854233243. The next prime is 21854233319. The reversal of 21854233270 is 7233245812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296811 + ... + 363049.

It is an arithmetic number, because the mean of its divisors is an integer number (2458712880).

Almost surely, 2^21854233270 is an apocalyptic number.

21854233270 is a deficient number, since it is larger than the sum of its proper divisors (17485172810).

21854233270 is a wasteful number, since it uses less digits than its factorization.

21854233270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99239.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 21854233270 in words is "twenty-one billion, eight hundred fifty-four million, two hundred thirty-three thousand, two hundred seventy".