21442023774070 has 16 divisors (see below), whose sum is σ = 38596495966848. Its totient is φ = 8576619915520.

The previous prime is 21442023774043. The next prime is 21442023774151. The reversal of 21442023774070 is 7047732024412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23223814 + ... + 24129433.

It is an arithmetic number, because the mean of its divisors is an integer number (2412280997928).

Almost surely, 2^{21442023774070} is an apocalyptic number.

21442023774070 is a deficient number, since it is larger than the sum of its proper divisors (17154472192778).

21442023774070 is a wasteful number, since it uses less digits than its factorization.

21442023774070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47398535.

The product of its (nonzero) digits is 526848, while the sum is 43.

Adding to 21442023774070 its reverse (7047732024412), we get a palindrome (28489755798482).

The spelling of 21442023774070 in words is "twenty-one trillion, four hundred forty-two billion, twenty-three million, seven hundred seventy-four thousand, seventy".