21701364070 has 32 divisors (see below), whose sum is σ = 39752259840. Its totient is φ = 8527461600.

The previous prime is 21701364067. The next prime is 21701364101. The reversal of 21701364070 is 7046310712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886495 + ... + 910645.

It is an arithmetic number, because the mean of its divisors is an integer number (1242258120).

Almost surely, 2^21701364070 is an apocalyptic number.

21701364070 is a deficient number, since it is larger than the sum of its proper divisors (18050895770).

21701364070 is a wasteful number, since it uses less digits than its factorization.

21701364070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25740.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 21701364070 its reverse (7046310712), we get a palindrome (28747674782).

The spelling of 21701364070 in words is "twenty-one billion, seven hundred one million, three hundred sixty-four thousand, seventy".